CN108370530A

CN108370530A - Method and system for executing network slice in wireless access network

Info

Publication number: CN108370530A
Application number: CN201680072322.4A
Authority: CN
Inventors: 戎璐; 马江镭; 朱佩英; 童文; 凯文·卡尔·金·欧
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-12-08
Filing date: 2016-12-08
Publication date: 2018-08-03
Anticipated expiration: 2036-12-08
Also published as: EP3381236B1; EP3378263A1; US10536946B2; CN108370576A; EP3378251A4; US20180176900A1; CN108353008B; CN112333001A; EP3378197B1; US20180184415A1; CN112333001B; KR102113018B1; EP3378197A1; WO2017098441A1; BR112018011546A2; EP3381236A1; CN108370587B; KR20180090882A; JP2018538751A; EP3381236A4

Abstract

Provide the system and method for making user equipment execute switching between super cell.Switching is completed on the basis of each service.In some cases, the switching from cell-of-origin to Target cell to a service is executed, while continuing cell-of-origin, Target cell or another cell being used for another service.In some cases, the switching of user equipment is to be directed to the switching of one of uplink communication and downlink communication from cell-of-origin to Target cell, and the user equipment continues cell-of-origin for another communication in uplink communication and downlink communication.

Description

Method and system for executing network slice in wireless access network

Related application

This application claims the priority and rights of following applications：In the Serial No. 62/264 that on December 8th, 2015 submits, The United States Patent (USP) Shen of 629 U.S. Provisional Patent Application and the Serial No. 15/356,124 submitted on November 18th, 2016 Please, the full content of above-mentioned application is by reference and to herein.

Technical field

The present invention relates to the system of the switching for executing mobile device between super cell in the wireless network and sides Method.

Background technology

In terms of designing mobile network, there is a kind of framework, wherein core net (Core can be splitted the network into Network, CN) and wireless access network (Radio Access Network, RAN).RAN is to user equipment (User Equipment, UE) radio communication channel is provided, and CN generally includes the node and function using fixed link.In the ran, though So there is (usually between fixed point) wireless connection, but forward pass and passback connection often rely on wired connection. Compared with CN, RAN has different requirements and problem to solve.

With the planning to next generation network and the research of the technology to that can support this network, due to can in CN The concern of people is caused with the benefit network slice of offer.When with such as network function virtualize (Network Function Virtualization, NFV) and software defined network (Software Defined Networking, SDN) When technology combines, network slice can allow to create virtual network on general calculating, storage and communication resource pond (Virtual Network,VN).These VN can be designed as having to control topological in network, and can be designed For with business and resource isolation so that one slice in business and processing and another slice in business and process demand every It leaves.By creating network slice, it can be created that the isolation network with following characteristic and parameter, the characteristic and parameter are outstanding It is suitable for being intended for the demand of the Business Stream of slice.This allow to divide single resource pool with serve it is very specific and Different demand, without requiring each slice that can support the demand of service and equipment by other slice supports.This field It will be recognized that the CN being sliced may show as multiple cores net for RAN, or connect there may be public Mouthful, wherein each slice is identified by slice identifier.Although will also be appreciated that can be directed to the Business Stream mould of its intention carrying Formula is sliced to customize, but multiple services (usually having similar demand) may be carried in each slice.Usually pass through clothes Business identifier distinguishes each in these services.

When creating slice core net, it should be understood that the resource pool for being sliced the utilization of resources is typically relatively static. The computing resource of data center is considered non-dynamic in a short time.By between Liang Ge data centers or in individual data The bandwidth that communication link between two functions of being instantiated in center provides does not have dynamic characteristic usually.

The topic being sliced in wireless access network is proposed in some discussion.RAN slices are brought to be cut in CN The problem of being encountered when piece.In order to usefully enable RAN slices in mobile wireless network, it is necessary to solve：With the nothing for going to UE Dynamic channel quality in wired link provides isolation and RAN and CN slices to be transmitted by public broadcasting transmission medium How intercorrelation the problem of.

In the third generation and forth generation (3G/4G) network architecture, base station, base transceiver station, NodeB and evolved NodeB (evolved NodeB, eNodeB) is the term for referring to the wireless interface for arriving network.Hereinafter, generic Access Point is used To indicate the wireless edge node of network.Access point will be understood to is that transfer point (Transmission Point, TP), receive Any one of point (Receive Point, RP) and transmission/receiving point (Transmit/Receive Point, TRP).It will Understand, term AP is construed as including above-mentioned node and their descendant node, but differs foregone conclusion It is limited to these.

By using SDN and NFV, each point that can be in a network creates functional node, and can make to function section The access of point is limited to the set of the equipment of such as UE.This allows so-called network to be sliced, wherein a series of virtual nets can be created Network is sliced, to serve the demand of different virtual networks.Difference be sliced carried business can with the business of other slices every It leaves, this can not only guarantee data security, but also can facilitate network planning decision.

Due to can easily distribute virtualization resource and the mode of business can be isolated, slice has been used for core Net.In wireless access network, all business are all transmitted by public resource, this effectively realize that business is isolated. There are many benefit that network slice is carried out in wireless access network, but design and realize that the technology barrier of framework leads to wireless edge Place lacks network slice.

In general, cell is associated with TRP (such as eNB in LTE).Many times, cell is that the ground of covering is provided by TRP Manage region.Arrange cell so that mobile device (such as user equipment (UE)) can be kept and serving cell when it is moved Connection.In the ideal case, as the coverage strength from first community reduces, UE will be connected to second community.Very much When, there are following regions, wherein UE " can see " more than one cell at cell edge.This can lead to some problems, Such as cell edge throughput is poor, frequent switching.In order to solve these problems, it is carried in some next generation mobile networks having proposed In view, cell can be no longer associated with fixed TRP.On the contrary, super cell can with one group of TRP and can be set for user The special frequency band that standby (UE) provides special services is associated.The service that network operator supports may fall into a series of classifications, wrap It includes for example：Enhance mobile broadband (enhanced mobile broadband, eMBB) to communicate, such as double-directional speech and video lead to Letter；Messaging；Streaming medium content transmits；Super reliable and low latency communicates (ultra-reliable and low latency communication,URLLC)；And large-scale machines type communication (massive Machine Type Communications,mMTC).Each in these classifications may include multiple service types --- such as intelligent transportation system Both system and electronic health care service can be classified as URLL service types.Existing handoff procedure (such as 3GPP TS 36.300V12.0.0 those handoff procedures shown in 10.1.2.1.1 sections：Intra-mobility management Entity (MME)/Serving Gateway Handover (SGW) handover (HO) (mobility management entity (mobility Management entity, MME)/gateway switching (Serving Gateway, SGW) in switching (handover, HO)) it is unsuitable for carrying out handover between super cell.

Invention content

Provide the system and method for executing switching for user equipment between super cell.Switching is in each service On the basis of complete.In some cases, execute to a switching of the service from cell-of-origin to Target cell, at the same continue by Cell-of-origin, Target cell or another cell are used for another service.In some cases, the switching of user equipment is to be directed to uplink The switching of one of road communication and downlink communication from cell-of-origin to Target cell, and the user equipment continues cell-of-origin For another communication in uplink communication and downlink communication.

The first broad aspect of the present invention provides a kind of method in UE, including：With at least one first service cell It is communicated, to send or receive each stream of packets in multiple stream of packets.For each service at least one service, use In the uplink communication of the service include one in the multiple stream of packets, or for the downlink communication of the service Uplink communication including one in the multiple stream of packets, or for the service includes in the multiple stream of packets One and the downlink communication for the service include one in the multiple stream of packets.This method includes transmitting at least One measurement report or transmission of reference signals.In response to instruction, complete at least one of multiple stream of packets from least A switching for arriving target serving district in one serving cell.After the handover, UE continues and at least one first service One in cell is communicated, to send or receive one in multiple stream of packets.

In some embodiments, it completes to cut in the case of can not executing synchronous in second community for second service It changes.In other embodiments, it can complete to switch by executing for second service to synchronize in second community.Implementing In mode, switching can be switched between switching or MME/SGW in MME/SGW.In other embodiments, this method can also wrap It includes, when in inactive state, UE transmits signal so that network determines that the UE is being moved in new cell, and the UE connects Receive the message for the cell ID for indicating new cell.

According to the second broad aspect, the present invention provides a kind of methods in access net, which includes multiple cells, Each cell includes at least one access point.This method includes：It is small using at least one of the multiple cell first service Area is communicated with UE, to send or receive each stream of packets in multiple stream of packets, wherein at least one service Each service, the uplink communication for the service includes one in the multiple stream of packets, or for the service Downlink communication includes one in the multiple stream of packets, or the uplink communication for the service includes described more One in a stream of packets and the downlink communication for the service include one in the multiple stream of packets.This method It continues at least one measurement report or receives reference signal.Instruction is transmitted to UE to complete to be directed in multiple stream of packets extremely Few one from a switching to the target serving district in the multiple cell at least one serving cell.Switching Later, this method be related to continuing at least one first service cell one is communicated with UE, to send or receive One in multiple stream of packets.

In some embodiments, the switching in above-mentioned either side is to be directed to first service from cell-of-origin to mesh Mark cell switches over, while continuing another cell being used for second service.In other embodiments, above-mentioned any Switching in aspect is to be switched over from cell-of-origin to Target cell for first service, while continuing Target cell for the Two services.In other embodiments, the switching in above-mentioned either side be for service uplink communication from Cell-of-origin is switched over to Target cell, while continuing the downlink communication that cell-of-origin is used for the service.In some implementations In mode, the switching in above-mentioned either side be for service downlink communication from cell-of-origin to Target cell into Row switching, while continuing the uplink communication that cell-of-origin is used for the service.Other embodiment, which provides, to be configured as holding The user equipment of one of the outlined above or method disclosed herein of row.Other embodiment provide be configured as execute with Upper general introduction or one of method disclosed herein access net.

It will be appreciated by those skilled in the art that these embodiments can be combined with the embodiment that other are listed, or Person can be implemented separately the modification as various aspects.

Description of the drawings

For a more complete understanding of the present invention and its advantage, referring now to the description carried out below in conjunction with attached drawing, in attached drawing In：

Fig. 1 is adapted for realizing the schematic diagram of the various exemplary example communication systems described in present disclosure；

Fig. 2 is to show that according to illustrative embodiments by RAN slice managers is to service specific RAN to be sliced example limit The schematic diagram of fixed exemplary set of parameters；

Fig. 3 is the exemplary schematic diagram for showing the service isolation based on slice in RAN；

Fig. 4 is to show that the Dynamic Slicing according to illustrative embodiments for the different services on common carrier is distributed Schematic diagram；

Fig. 5 is another exemplary schematic diagram for showing the service isolation based on slice in RAN；

Fig. 6 is to show that UE is connected to the schematic diagram of multiple slices by different access technologies；

Fig. 7 is the schematic diagram for showing the service customization virtual network according to illustrative embodiments realized using slice；

Fig. 8 is adapted for realizing the schematic diagram of the various exemplary example processing systems described in present disclosure；

Fig. 9 is according to disclosed embodiment for business to be routed to the framework that RAN is sliced from core net slice Diagram；

Figure 10 is the downlink traffic for will be received from core net slice shown according to disclosed embodiment Route to the flow chart of the method for AP；

Figure 11 is the flow chart for showing the method executed by access point according to disclosed embodiment；

Figure 12 is according to disclosed embodiment for business being routed to that RAN is sliced from core net slice and figure The diagram of the similar framework of framework in 9；

Figure 13 is the flow chart for showing the method for being network controlled device execution according to disclosed embodiment；

Figure 14 A are the figures for showing the wireless access system based on super cell；

Figure 14 B are the figures of the network in Figure 1A, and wherein TRP is disposed in two super cells；

Figure 14 C are the figures of the network in Figure 1A, and some of TRP are disposed in third super cell；

Figure 14 D are the flow charts from the method for the execution switching of UE angles provided by embodiments of the present invention；

Figure 14 E are the flow charts from the method for the execution switching of network perspective provided by embodiments of the present invention；

Figure 15 is shown carries out service switching from source super cell to Target cell, while keeping other services are super small Area is used for the example of another service；

Figure 16 is shown carries out service switching from source super cell to Target cell, while keeping source super cell being used for The example of another service；

Figure 17 shows the examples of the service switching from source super cell to target super cell, and wherein UE is by target Super cell is used for another service；

Figure 18 is shown carries out service switching only for uplink communication from source super cell to Target cell, protects simultaneously Hold the example that source super cell is used for downlink communication；

Figure 19 is shown carries out service switching only for downlink communication from source super cell to Target cell, protects simultaneously Hold the example that source super cell is used for uplink communication；And

Figure 20 is the flow chart for showing the method for being executed at UE.

Specific implementation mode

Software defined network (SDN) and network function virtualization (NFV) have been used for realizing the network in physical core net Slice.Network slice is related to distributing resource (such as calculating, storage and connection resource) with the other virtual network for creating isolation.From From the perspective of network entity inside slice, slice is different comprising network.The business pair second carried on first slice Slice is sightless, therefore any process demand in the first slice is also.Other than network is isolated from each other, slice is also Allow to create each slice using different network configurations.Therefore, the first slice can be created as having with low-down Postpone the network function responded, and the second slice can be created as having very high handling capacity.Both slices can With with different characteristics, to allow to create different slices to meet the needs of special services.Network slice is that have clothes Special logic (also referred to as virtual) network for specific function of being engaged in, and common base can be hosted in together with other slices and set Shi Shang.Service specific function associated with network slice can for example manage geographical coverage area, capacity, speed, delay, Shandong Stick, safety and availability.Traditionally, in view of the difficulty for realizing slice in wireless access network (RAN), network slice is limited to Core net.However, the illustrative embodiments being sliced for realizing RAN will now be described.In at least some examples, RAN is cut Piece and network core slice are coordinated to provide end-to-end slice, and it is logical throughout entire core net and RAN to can be used for providing extension Believe the service particular network slice of infrastructure.

The radio resource for distributing to RAN is typically one group of wireless network permission for authorizing network operator, may include Such as one or more specified wireless frequency bandwidth in one or more geographic areas.Network operator usually with visitor Family reach the grade of service that specified network operator must provide service-level agreement (service level agreement, SLA).The service that network operator supports can fall into a series of classifications, including for example：Basic mobile broadband (mobile Broadband, MBB) communication, such as double-directional speech and video communication；Messaging；Streaming medium content transmits；It is super reliable low to prolong (ultra-reliable low latency, URLL) is communicated late；Micromachine type communication (micro Machine Type Communications, μM TC)；And large-scale machines type communication (mMTC).Each in these classifications can wrap Including multiple service types --- such as intelligent transportation system and electronic health care service can be classified as URLL service types.One In a little examples, the service distribution for one group of client (such as smart phone subscriber in the case of mobile broadband) can be directed to Network is sliced, and in some instances, can be directed to single client (such as providing the tissue of intelligent transportation system) distribution net Network is sliced.

Fig. 1 is the schematic diagram of example communication system or network 100, wherein showing described in present disclosure may be implemented Example.Communication network 100 is by one or more organizational controls and includes physical core net 130 and wireless access network (RAN) 125.In some instances, core net 130 and RAN 125 are controlled by public network operator, however in some instances, core Net 130 and RAN 125 are by different organizational controls.In some embodiments, wherein at least some are by heterogeneous networks operator Multiple RAN 125 of control can be connected to by one or more network operators or the core net controlled by independent body 130.Core net 130 is sliced, and is shown with CN slices 1 132, CN slices 2 134, CN and is sliced 3 136 and CN slices 4 138.It will beadiscussedain further detail below, it is to be understood that multiple cores net can use identical RAN resources.

The interface between core net 130 and RAN 125 is provided, to allow the business from CN 130 to pass through access point (access point, AP) 105 is led to UE 110, and access point can be base station, such as long term evolution (Long-Term Evolution, LTE) substandard evolved NodeB (eNB), 5G nodes or any other suitable node or access point.AP 105 are also referred to as transmission/receiving point (TRP), can serve commonly known as multiple mobile nodes of UE 110.Institute as above It states, in the present specification, access point (AP) is used to represent the wireless edge node of network.Therefore, AP 105 provides RAN 125 Wireless edge, wherein RAN 125 may, for example, be 5G cordless communication networks.UE 110 can from AP 105 receive communication and Emit to AP 105 and communicates.The communication that UE 110 is gone to from AP 105 is referred to alternatively as downlink (downlink, DL) communication, and And the communication that AP 105 is gone to from UE 110 is referred to alternatively as uplink (uplink, UL) communication.

In simplification example shown in Fig. 1, the network entity in RAN 125 may include resource allocation manager 115, Scheduler 120 and RAN are sliced manager 150, may be at the network operator of control RAN 125 in some embodiments Control under.Resource allocation manager 115 can execute the relevant operation of mobility.For example, resource allocation manager 115 can be with It monitors the mobility status of UE 110, switchings of the UE 110 between networks or in network can be supervised, and UE can be implemented Roaming limitation and other functions.Resource allocation manager 115 can also include configuration feature of eating dishes without rice or wine.Scheduler 120 can manage Manage Internet resources use and/or can with dispatch network communicate time and other functions.RAN be sliced manager 150 by with It sets and is sliced for realizing RAN as described in more detail below.It should be understood that in some embodiments, scheduler 120 is that slice is special It fixed scheduler and is sliced specific to RAN, and is not public for RAN.Those skilled in the art will further recognize It arrives, in some embodiments, some slices, which will have, is sliced specific scheduler, and other slices will use public RAN tune Spend device.Public RAN schedulers can be used for being coordinated between being sliced particular scheduler, so that public RAN resources obtain Suitably to dispatch.

In the exemplary embodiment, core net 130 includes being sliced for realizing (and optionally managing) core net Core net is sliced manager 140.As shown in Figure 1, there are four the slices illustrated for the tool of core net 130：CN slices 1 132, CN slices 2 134, CN is sliced 3 136 and CN slices 4 138.In some embodiments, these slices may show as RAN different Core net.UE 110 may include any client terminal device, and can also be referred to as such as mobile station, mobile terminal, user Device, client terminal device, subscriber devices, sensor device and machine type device.

Next generation wireless network (such as the 5th generation or so-called 5G networks) may be supported flexibly to eat dishes without rice or wine in the ran, Its allow using different waveform and each waveform different transmission parameter (such as some support waveforms difference basis ginseng Manifold (numerology)), different frame structures and different agreements.Similarly, in order to which utilization can be taken in different frequencies A large amount of AP 105 of both macrocells and picocell for being operated in band transfer point form of size, 5G networks can be to a series of AP 105 is grouped, to create virtual transmission point (virtual transmission point, vTP).Someone may be by vTP Overlay area is known as super cell.By coordinating come the transmission of the signal of the AP 105 in self-virtualizing TP, network 125 can improve Capacity and coverage area.Similarly, the grouping of AP can be formed to create the virtual receiving point (virtual for allowing multipoint reception receive point,vRP).By changing the AP 105 in virtual group, network 100 can allow associated with UE 110 Virtual TP and RP is moved in a network.

From the perspective of network operator, on-premise network infrastructure may be very expensive.Maximally utilise The infrastructure and radio resource of deployment are extremely important for enabling network operator to withdraw its investment.Following disclosures carry It has supplied for enabling network slice at the wireless edge of RAN 125 and for promoting business in the wireless edge of RAN 125 Slice and the core net 130 that may also be sliced between the system and method that route.In some instances, this may be implemented to hold To end network slice, and allow to divide network and the wireless connection in single network infrastructure after network operator Middle offer service isolation.

With reference to Fig. 2, in the exemplary embodiment, RAN slice managers 150 are configured to create and manage RAN slices 152.Each RAN slices 152 have the RAN resources uniquely distributed.The RAN resources that can be used for distributing can be classified as：RAN is accessed Resource comprising

AP 105 and UE 110；

Radio resource comprising：

Wireless network frequency and time (frequency and time, f/t) resource 158, and

Space resources, geographical location based on AP associated with slice 105 and in application advanced antenna technologies Situation

Under the directionality based on transmission；And

How each other radio open configuration 160 specifies radio resource and access-in resource interface.

Radio open configuration 160 can for example specify the attribute of one or more classifications in following classifications：It is used for The wireless access technology 162 (such as LTE, 5G, WiFi etc.) of slice；(such as orthogonal frequency is more for the type of waveform 164 to be used Location (orthogonal frequency division multiple access, OFDMA), CDMA (code Division multiple access, CDMA), Sparse Code multiple access (sparse code multiple access, SCMA) Deng)；Underlying parameter collection parameter 166 (such as subcarrier spacing, tti length for specific waveform (transmission time interval length, TTI), cyclic prefix (cyclic prefix, CP) length etc.)；Frame Structure 165 (such as UL/DL zone configurations of TDD system)；Available multiple-input and multiple-output (multiple-input- Multiple-output, MIMO) parameter 168；Multiple access access parameter 170 (such as authorizing/exempt from mandate to dispatch)；Coding parameter 172 (such as type of mistake/redundancy coding scheme)；And AP and UE functional parameter (such as management AP switching, UE retransmit, UE The parameter of state conversion etc.).It will be appreciated that and not all embodiments all can include wireless transmission function described above Entire list, and in some cases, there may be overlapping in some above-described classifications --- such as specific waveforms It can inherently be limited by specified RAT.

In the exemplary embodiment, RAN is sliced point of the management of manager 150 to the RAN resources of specific RAN slices 152 Match, and communicated with resource allocation manager 115 and scheduler 120, to realize the specific RAN slices 152 of service and connect Receive the information about RAN Resource Availabilities.In the exemplary embodiment, RAN be sliced manager be based on from core net 130 and The slice that especially core net slice manager 140 receives requires to limit the RAN resources for RAN slices 152.

RAN slices are each examples that can be established and maintain the different duration, and range is from can be unlimited The long-term example established and maintained to phase to may only shortly continue for specific function interim RAN be sliced example.

In the exemplary embodiment, RAN is sliced manager 150 and is configured as realizing RAN slices to reach following function In it is one or more：Service in carrier wave is isolated, will be sliced the dynamic radio resource distribution accounted for, for wirelessly connecing It networks and abstract mechanism, the cell association based on each slice, the handover mechanism of physical layer and is each sliced state machine.This field It will be recognized that the list is neither exhaustive, nor is it necessary that with all features to provide RAN slices.It is existing The RAN that will be described in further detail for these functions is sliced.

In at least some examples, RAN slices 152 are associated with special services respectively.In another embodiment, any Or all RAN slice 152 can carry business associated with one group of service.It may may require that with similar parameters and characteristic The service of RAN slices 152 can be combined together on single slice, to mitigate the expense for creating different slices.It such as will be fine As understanding, it can be distinguished by using service identifier and the different associated business of service.As shown in Fig. 2, RAN is sliced 152 will be saved with using one group of AP 105 for specifically eating dishes without rice or wine configuration 160 and one group of wireless frequency/time resource 158 is in communication with each other Point (AP collection 154) and one group of reception UE 110 (UE collection 156) are associated.UE 110 in UE collection 156 is typically and is sliced in 152 The associated UE of service.Be sliced by creating, one group of resource be assigned and be sliced in business by comprising so that use The different services of RAN 125 can be isolated from each other.In this respect, in the exemplary embodiment, isolation means each same The communication occurred in the RAN slices of Shi Fasheng will not influence each other, and can occur in not influencing existing RAN slices Additional RAN slices are added in the case of communication.As will be explained in more detail below, in some illustrative embodiments, Can by by each RAN slice 152 be configured to using different configurations 160 of eating dishes without rice or wine (including waveform underlying parameter collection 166) come Realize isolation.By that based on the requirement to slice, come the configuration 160 that selects to eat dishes without rice or wine, the performance of slice can be improved or reduce slice The influence that resource uses, this can be realized by using the waveform with better frequency spectrum localization.For example, can receive Sub-band filter/adding window is applied at device, the interference between adjacent sub-bands to reduce the different underlying parameter collection of application.As will below It further discusses, it is associated that different RAN slices 152 can send and receive node from different groups of physics.

Therefore, although it would be recognized by those skilled in the art that can by the distribution of wireless time/frequency resource 158 come Slice is distinguished, but can also be sliced by specified configuration 160 of eating dishes without rice or wine to distinguish.For example, by distributing based on different codes Resource 172, can be with the different slice of separated maintenance.In the access technology (such as Sparse Code multiple access (SCMA)) using different layers In, different layers can be associated from different slices.Slice can time domain, frequency domain, code domain, power domain or special domain (or Above-mentioned any combinations) in be separated from each other.

In some embodiments, tangential section distributes one group of time/frequency resource pair 158 and makes it possible to pass through private radio Resource transmission is intended for the business of the slice.In some embodiments, this may include with Fixed Time Interval tangential section Distribute entire frequency band or its may include always tangential section distribution usable frequency dedicated subset.Both of which can provide Service isolation, but they may some be inefficient.Since what this scheduling of resource typically limited in advance, redefining money There may be the longer period of times that the resource distributed is underutilized between source.If there is the equipment of long duration free time, then Redefining cannot too frequently, and otherwise these equipment will have to continually reconnect to network to obtain this information.Therefore, In the exemplary embodiment, the service isolation of (such as in identical carrier frequency) allows in same load on common carrier Multiple business independent coexistence in wave.Physical resource and other resources can be special by being sliced in one group of special slice resource. As described above, in 5G networks, it is expected that many different agreements and waveform can be supported, some of agreements and waveform may have Many different underlying parameter collection.

In some instances, resource allocation manager 115 includes that slice perceives the configuration manager (slice-aware that eats dishes without rice or wine Air interface configuration manager, SAAICM) 116, it is distributed to based on manager 150 is sliced by RAN RAN slices 152 eat dishes without rice or wine configuration to control AP 105, to allow waveform and underlying parameter collection to be exclusively used in slice 152.Then, Based on the network f/t resource parameters collection distributed by least one RAN slice managers 150, network dispatcher 120 is in a slice All nodes (AP 105 or UE 110) allocation of transmission resources of transmission data, and node is in 154 He of AP resources distributed It is transmitted in UE resources 156.This allows the one or more of such as RAN slice manager 150 and resource allocation manager 115 Network entity dynamically adjusts resource allocation, hereafter will be discussed in more detail.The dynamic adjustment of resource allocation is permitted Perhaps tangential section 152 provides the service guarantees of the lowest class without requiring the resource for providing this grade of service exclusively special In the slice.This dynamic adjustment allows no resource allocation originally to other demands.The dynamic of physical resource is special can To allow network operator to increase the use of enabled node and radio resource.Such as RAN is sliced manager 150 and resource allocation pipe The one or more network entities for managing device 115 can be based on being sliced the demand of supported service to each slice allocation of parameters. Other than service discussed above is isolated, in some embodiments, the slice specific to service (or a kind of service) is generated Allow to be directed to supported service customization RAN resources.Different access protocols can be provided for each slice, allowed for example each Different confirmations and retransmission scheme are used in a slice.Or a different set of forward error correction is arranged in each slice (Forward Error Correcting, FEC) parameter.Some slices can be supported to exempt from authorized transmissions, and other slices will Dependent on the uplink transmission based on mandate.

Therefore, in some illustrative embodiments, RAN slice managers 150 are configured to by distinguishing each to take The configuration 160 of eating dishes without rice or wine of RAN slices 152 centered on business services isolation to realize.In at least some examples, even if at other In the case that RAN slicing parameters collection (such as AP collection 154, UE collection 156 with one or more in network f/t collection 158) is similar, It is distinguished between the attribute for configuration 160 of eating dishes without rice or wine from RAN slice managers 150 to the difference of 152 distribution of different RAN slices Service isolation can be provided.

Fig. 3 shows the example of the service isolation in carrier wave.Specifically, in the example of fig. 3, manager is sliced by RAN 150 be respectively that three services S1, S2 and S3 distribute 152 (S1) of corresponding RAN slices, 152 (S2) and 152 (S3) for public Frequency range distributes (common carrier), wherein being sliced the adjacent frequency subbands in distribution RAN 125 to these RAN.In showing for Fig. 3 In example, 152 (S1) of RAN slices, 152 (S2) and 152 (S3) that distribute to three services S1, S2 and S3 include about AP collection The same allocated of 154 and UE collection 156, and with the similar network f/t resources 158 of adjacent sub-bands distribution.However, distributing to The configuration 160 of eating dishes without rice or wine of three services S1, S2 and S3 are differentiable, even if to be intended to use similar carrier frequency in these services Rate resource (that is, the adjacent subband specified in network f/t resources 158) provides service isolation in the case of operation. Shown in example, waveform 164 and underlying parameter collection parameter 166 one of distribute or the two in differentiation is provided.Underlying parameter Collect parameter and limits the parameter for specifying waveform.For example, in the case of OFDMA waveforms, underlying parameter collection parameter includes between subcarrier Every, the length of cyclic prefix, the length of OFDM symbol, the duration of scheduled transmission duration and be included in scheduled transmission The quantity of symbol in duration.

Specifically, in the example of fig. 3, RAN is sliced 152 (S1) and RAN slices, 152 (S2) and is respectively assigned identical wave Shape function (OFDMA), but it (is respectively base to be respectively assigned applied to the different underlying parameter collection parameters of the wave function Plinth parameter set A and underlying parameter collection B).Refer to for example, underlying parameter collection A and underlying parameter collection B can be respective OFDMA waveforms Fixed different TTI length and subcarrier spacing.3rd RAN is sliced 152 (S3) and is assigned different multiple access access functions 170 One group of underlying parameter collection parameter (basis of (such as SCMA) and the waveform joined suitable for the multiple access access functional dependence different from this Parameter set C).

In some instances, different clothes can fully be distinguished by distributing to different 160 parameters of transfer function of different RAN slices Business so that can realize RAN slices in crossover frequencies in the overlapping time.However, in some embodiments, it is also possible to need Timing separation is wanted, this can for example be realized by scheduler 120.

It, can also be by distinguishing the access-in resource to different RAN slice distribution come real in some illustrative embodiments Now service isolation.For example, the AP collection 154 for distributing to different RAN slices 152 can be fully different so that geographic isolation occurs. In addition, as set forth above, it is possible to different RAN slices are isolated using different network/time resources 158.

In the exemplary embodiment, the parameter of example setting is sliced for RAN can be based on real-time network demand and can be used Resource and dynamically change.Specifically, in the exemplary embodiment, RAN is sliced manager 150 and is configured to monitoring RAN125 It is sliced real-time requirement and available resources on 152, and the information based on monitoring and the performance for special services restriction with RAN It is required that (such as performance requirement specified in SLA), RAN managers 150 can redefine its distribution carried out for slice.

Fig. 3 also shows AP2 105 and is present in RAN 125.AP2 105 is served and the shown UE serviced by AP 105 110 different UE 110, and support 1 152 (S1) of slice (it is one of the slice that AP 105 is supported) and slice 4 152 (S4) service in.The parameter of 4 152 (S4) of slice is not shown, it should be understood that it is different from those of 1 152 (S1) of slice Parameter.Therefore, be connected to slice 1 152 (S1) UE 110 can by any one of AP 105 and AP2 105 or both Lai Service.It should also be understood that all AP in not single RAN are required for supporting identical one group of slice.

Fig. 4 schematically shows one group of RAN resources associated with common carrier (such as RAN 125), especially without Line frequency/time (f/t) resource.In the example of fig. 4, resource allocation manager 115 connects according to from RAN slice managers 150 The instruction of receipts by f/t resources be respectively allocated to the slice being respectively associated with special services S4, S5 and S6 152 (S4), 152 (S5) and 152(S6).Can be directed to ultralow delay reliable communication (ultra-low-latency-reliable communication, ULLRC) the service S4 of equipment is assigned resource associated with ULLRC 152 (S4) of slice, for mobile broadband (MBB) Service S5 is assigned resource associated with MBB 152 (S5) of slice, and for large-scale machines type communication (mMTC) Service S6 is assigned resource associated with mMTC 152 (S6) of slice.As shown in figure 4, the distribution can be dynamic, because The distribution of correlated frequency resource in common carrier RAN resources 200 can change from time T1 to time T2.In addition, It, can be by the way that different radio open configurations 160 (including underlying parameter collection, wave be arranged to be each sliced between time T1 and T2 It is one or more in shape and agreement), carry out different resource allocations to be directed to each slice 152.It can also be in time T1 Other RAN for for example including physical access resources (AP collection 154 and UE collection 156) are differently distributed to different slices between T2 It is sliced resource parameters.Although frequency resource is illustrated as continuously, being allocated to the frequency subband of each slice not in Fig. 4 It must be continuous, and in each slice 152, the frequency subband resource distributed can be discrete.Although showing in Fig. 4 Go out a MBB and be sliced 152 (S5), but may have multiple MBB slices and additional non-MBB slices.As described above will It will be appreciated that by using different underlying parameter collection, different waves to different slices 152 (S4), 152 (S5) and 152 (S6) Shape and different agreements, the business from 152 (S4) of each slice, 152 (S5) and 1S2 (S6) are effectively isolated.Each slice Interior function and node (such as supporting the equipment (UE 110) or entity (AP 105) of service associated with the slice) are only known The road underlying parameter collection of its own, thus this allows its business to be isolated.In the exemplary embodiment, in order to reduce to not With the interference between the channel frequency resource of the different slice distribution of underlying parameter collection, applied at AP105 or UE 110 receiving Sub-band filter or adding window, to further enhance the localization to the waveform with different underlying parameter collection.In exemplary embodiment party In formula, in order to adapt to the function of the different stage at AP 105 and UE 110, RAN slice managers can be sliced to each RAN The 152 multigroup alternative configurations 160 of eating dishes without rice or wine of distribution, wherein selection is suitable in transmission by resource allocation manager 115 or AP 105 When transfer function.

Wireless f/t resources can be considered as two dimensions in resource grid.In Fig. 4, the different physical sizes of block indicate The relative usage of S4, S5 and S6 to the radio resource in RAN 125 is serviced, depends on being made simultaneously by RAN slice managers 150 The slice distribution realized by resource allocation manager 115 and scheduler 120.It is provided by using the difference in resource grid is allowed The dispatching method that the variation of different wave and resource grid distribution is transmitted in source block, can execute the dynamic allocation to resource. The ability of flexible resource grid transfer function resource different from distribution (different wave such as with different underlying parameter collection) It engages, provides additional control dimension.It can be changed according to the load of different slices dynamically to change wireless f/t resources point Match.

It would be recognized by those skilled in the art that resource can be distributed with tangential section 152, to consider what different slices may have Very different business configuration.For example, mobile broadband (MBB) connection is dispersion but capacity is very big, and machine type is logical Letter (Machine Type Communication, MTC) equipment generally produces following business configurations, have with fixed intervals or Person transmits the large number of equipment of low volume data in response to event, and the equipment for being connected to URLLC services can be generated in its activity Limited period of time in may quite continuous a large number of services, and due to need both low latency and reliability therefore may occupy Vast resources.When URLLC and mMTC services do not consume their resource allocation, it can increase and distribute to other services (such as MBB resource) rather than resource is disposed or extensive MTC deployment dedicated for ULLRC, cause in ULLRC deployment or big rule Mould MTC deployment generates not used resource when not generating business.Fig. 2 shows the examples of this distribution variation, wherein distributing to The part that MBB is sliced the resource 200 of 152 (S5) increases in time T2 relative to time Tl, and distributes to ULLRC slices 152 (S4) it is reduced relative to time T1 in time T2 with the part of the resource 200 of 152 (S6) of mMTC slices.For different types of company Different waveforms can be selected by connecing, and can serve similar connection class using the different underlying parameter collection of single waveform Between two of type slices (such as two MTC services can all use identical waveform but with different underlying parameter collection) into Row is distinguished, to maintain service isolation and be efficiently used to frequency spectrum resource.

In at least some examples, RAN slices can be used for decoupling UE 110 from physics AP 105, and provide wireless Access net level of abstraction.For example, different RAN slices 152 can be assigned different AP collection 154 so that UE 110 can be utilized First RAN is sliced 152 (S1) and the first AP105 and maintains the first session for being directed to first service, and also the 2nd RAN is utilized to be sliced 152 (S2) and the 2nd AP 105 maintain the second session for second service.Such configuration allows use to be most suitable for specific clothes The AP of business.It should be understood that one group of AP can be grouped together, to form virtual access point.The coverage of virtual access point can To be represented as forming the union of the coverage of AP.AP identifiers can be distributed to vAP.VAP customizations can be made to make For sending point or receiving point (vTP, vRP).Multiple and different vAP can have overlapping member relation so that：Each vAP by Multiple and different physics AP compositions, some of physics AP are different a part of vAP.Some vAP can have and other The identical member relations of vAP.

In some embodiments, RAN is sliced manager 150 and may be configured to access logic access-in resource and physics Both resources distribute to RAN slices 152.For example, referring to Fig. 5, there are multiple AP 105.As discussed above, these AP 105 can be used for creating virtual AP rather than each AP 105 is independently operated.It can be created with different but overlapping AP collection Virtual TP 176 and virtual RP 178.Each slice can be directed to and create different vTP and vRP.In addition to tangential section distributes difference Physical resource except, RAN be sliced manager 150 can also to it is each slice distribution such as vTP 176 and vRP 178 logic Resource.Following patent applications describe wherein UE wireless networks associated with virtual TP and RP：Entitled " System and The U.S. Patent Publication No.US2015/0141002A1 of Method for Non-Cellular Wireless Access "；Topic For the U.S. Patent Publication No.US2014/ of " System and Method for Radio Access Virtualization " 0113643A1 and entitled " System And Method For User Equipment Centric Unified System The U.S. Patent Publication No.US2014/0073287A1 of Access In Virtual Radio Access Network ", these Patent application is herein incorporated by reference.In the exemplary embodiment, RAN slices can be directed to execute in these patents public affairs The various aspects with abstract method are virtualized disclosed in opening, to realize the specific virtualization of slice as described below and be abstracted.

In some embodiments, being connected to the various devices (UE 110) of wireless network (RAN 125) will respectively participate in One or more different services (such as ULLRC service S4, MBB services S5, mMTC service S6), and each service can be with It is assigned different RAN slices 152.Resource allocation manager 115 can be to each virtual TP 176 or RP 178 distribution not Same slice with demand to be adjusted.For example, supporting a variety of services --- for example for relaying such as by rhythm of the heart service The information of generation ULLRC service and MBB service --- UE 110 can transmit on different slices and these service in Each associated data.Each slice can be assigned different coded formats, and can utilize different virtual RP 178 is transferred to corresponding slice.When there are data to be transmitted, what UE 110 can be being used to the offers of RAN 125 The instruction of slice 152.

When UE 110 is moved, identical virtual sending point/receiving point TP/RP 176,178 can be remained attached to, But the physical access point (AP 105) in virtual access point TP/RP 176,178 will change.In addition, more with the movements of UE 110 Remote distance, it is possible to which initially use physics AP or wireless t/f resources are no longer available for RAN 125.When UE 110 advances foot Enough remote so that when the frequency spectrum for distributing to slice by carrier wave is no longer available, this may occur, or if network operator makes The infrastructure that is possessed with another entity in the same area and the same asset in another entity cannot be accessed, then it may hair The raw situation.In the latter case, it is also possible to be allocated to slice 152 so that UE 110 is passed by RAN 125 The specific waveforms used when defeated are no longer available.In this case, resource allocation manager 115 can notify to pass to UE 110 Defeated parameter will change at some geo point.In some embodiments, this can be executed as a part for handoff procedure. It is to be further understood that as virtual TP/RP 176,178 or other vAP associated with UE 110 based on each slice, There may be switch for a slice rather than another slice.This is likely to occur in many different situations In, including UE 110 be connected to defined by be sliced in first service first service provider situation and be connected to another The situation of the second service provider of second service in being sliced defined by one.Under this situation, the side between AP or vAP It boundary may be different due to service provider.Providing both services by same provider, (or at least access service is by same One provider provides) situation under, be sliced boundary between specific AP may misalignment, this will lead to cutting based on slice It changes.

In some instances, it is operated in different frequency bands when UE 110 is switched to (or otherwise by service by) When different TP 170, thus it is possible to vary waveform parameter 164.RAN slices 152 can have distribute to it for servicing UE's 110 Two alternative TP 176 a, wherein TP 176 is operated in such as high frequency band of millimeter frequency band, and another TP 176 operate in lower frequency.Between the AP for servicing UE 110 of switching and slice 152 between different frequency bands Corresponding switching can be dynamic, depend on the tune made at scheduler 120 and realized by resource allocation manager 115 Spend decision.

By make UE 110 be connected to virtual access point TP/RP 176,178, UE 110 can logically with practical object Manage infrastructure decoupling.This can alleviate the problem related to honeycomb switching and cell edge interference.It can be to virtual TP 176 Different physics AP 105 is distributed with virtual RP 178 to collect so that different slices can be by different hardware resource collection services. This can allow network operator that expensive and high power capacity access point is exclusively used in the service of such as MBB, and by lower cost AP 105 be exclusively used in such as MTC service service.In addition, distribution TP 176 and RP 178 can be with as independent logic entity For by uplink data path and downlink data path decoupling, this can to allow to better use in some cases Network infrastructure.If given RAN slices 152 are exclusively used in being generated uplink service with fixed intervals but seldom being sent appointing The MTC device of what downlink traffic, then the slice can be serviced by one group of virtual RP 178, the virtual RP of the group 178 is designed to It is more steady than virtual TP 176.This allows asset allocation service in the demand for the service for being assigned to RAN slices 152, to reach (it such as will be assigned eNodeB in the case of being allocated as a whole than AP and will provide for the tradition of bi-directional service Required in LTE network) finer granularity level.

Creating virtual TP 176 and RP 178 can also be referred to as generating super cell.Super cell allows multiple physics AP 105 work together to service UE 110.Super cell can be combined with both UE 110 and RAN slices 152.This allows UE 110 are communicated in each slice from different super cells.It is then possible to be cut for associated with each super cell The particular demands of piece configure each super cell.For example, being sliced 152 (S4) UE for a RAN centered on first service 110 can be communicated with the first super cell (TRP), and be sliced 152 (S5) phases for the RAN centered on second service Associated business is communicated with the second super cell.The slice that carrying services associated business with MTC may be oriented The fixed MTC device of service (in the case where UE 110 is MTC device).Being exclusively used in the slice of fixed MTC device can be designed To stablize in terms of its member relation and relatively constant.Other slices, such as it is exclusively used in mobile MTC device such as intelligent transportation system Those of device and other such Information Mobile Services slice can be configured as the mobility for adapting to bigger.Due to the device of support Limited mobility, so supporting the slice of fixed MTC device that can also be designed to (such as move in mobile management function to ps domain Property management entity) in have limited function.It should be understood that although allowing to reduce switching times using super cell, switching can It can will not be completely eliminated.When the waveform and underlying parameter collection for distributing to slice in super cell are along the path for moving UE Whole points at it is unavailable or not supported when, it may occur however that switching.By requiring to be switched to new super cell, network can energy Enough ensure new slice Information Delivery to UE 110.

As described above, when different super cells be used to service different slices, UE 110 can be cut in the first RAN Switching is undergone in piece 152, without undergoing switching in another RAN slices 152.In some instances, RAN 125 can be covered The Internet resources being assigned between multiple network operators, wherein different super small of each self-supporting of different network operators Area.Because they are by different super cell services, different network operators can be directed to different based on service RAN slices 152 provide service support for identical UE 110.This allows network operator to provide different services, and allows Client's (user or service provider) selects different networks to transport based on cost, coverage area, service quality and other factors Battalion quotient is to obtain different RAN slices 152.Therefore, in some instances, the utilizations of UE 110 are supported by first network operator First RAN is sliced 152 to access first service, and same UE 110 can utilize second supported by the second network operator RAN is sliced 152 to access second service.It will hereafter continue to further discuss what UE was carried out with multiple and different cells or super cell Interaction, and it will be more completely understood with reference to the discussion since Figure 14 A.

Describe to distribute another example of different access-in resources now with reference to Fig. 6 to different slices 152.As begged for above Opinion and as shown in fig. 6, the single UE of such as UE 110 can be connected to different access point (objects for different services Reason and virtual the two).Although AP 602,604 and 606 is illustrated as physics AP, but it is to be understood that they can also indicate have The virtual AP of several composition AP.In some instances, RAN 125 is the heterogeneous network for having different types of AP, and may Support different RAT.AP 602 is the access point that can provide wide overlay area, also referred to as macrocell, and usually compared with Access service is provided in low-frequency band.AP 602 will usually be directly connected to core net 130 and support one group of RAT (such as HSPA, LTE、5G).Access point 604 and access point 606 can be directed to provide the AP of smaller overlay area, and it is commonly known as small Cell, picocell and/or Femto cell.AP 604 and AP 606 can (such as by internet, by be used as relaying dress The UE that sets passes through the fixed wireless connection to AP 602) it is connected indirectly to core net 130.In some embodiments, AP 604 and AP 606 can be directly connected to core net.AP 604 and AP 606 can be carried in higher frequency band (such as millimeter wave) For service and/or they can support a different set of RAT (such as WiFi or the access technology for being exclusively used in upper frequency AP). As shown in fig. 6, in the case where heterogeneous network can be used, can in conjunction with different access points using different access technology or Different waveforms is to access different slices.When in the service range in AP 604, UE 110 can rely on AP 604 to MBB is sliced 152 (S1).This can provide higher speed or more inexpensive connection to UE 110, and its can remove with it is all Such as the high bandwidth connection of the larger AP of AP 602.UE 110 may also connect to IoT services for MTC functions.MTC connections can To be sliced 152 (S2) services by the IoT accessed by AP 602 (it provides macrocell covering).Macrocell covering is usually more To be universal, and more devices can be preferably supported in given time compared with the smaller AP of such as AP 604.With compared with Small access point 604 is compared, and the ability of this increased coverage area and the more devices of support may be with lower data speed Rate is cost.Since MTC device usually requires that low bandwidth connects, so the major part in them can be by being connected to AP 602 And it is serviced in IoT services 152 (S2) of slice.UE 110 may also participate in the service for needing URLLC connections, and URLLC connects It connects and slice 152 (S4) supports is serviced by URLLC.The downlink traffic that URLLC is sliced in 152 (S4) can be by the AP as TP 606 transmit in high frequency band.However, in order to ensure uplink service is reliably delivered, and will not be covered with smaller It switches over, the uplink service in the slice can be guided to AP 602 between a large amount of AP of cover area.It should be understood that every A AP can be indicated by the virtual representation form in each slice so that slice 152 (S4) in uplink service and cut Uplink service in piece 152 (S2) is sent to different logic vRP, wherein each logic vRP indicates identical physics AP.In 3G/4G networks, UE 110 is usually once connected to a RAN access point, and by same connection to all services It is route.By supporting to be connected to diverse access point (true and virtual the two) simultaneously, can on public access medium every From different slices.It will be understood by those skilled in the art that different slices can use different waveforms (for example, a slice can To use orthogonal frequency division multiple access (OFDMA) waveform, and the second slice uses another waveform such as Sparse Code multiple access (SCMA) waveform), Or two slices can use the waveform of the same type with different underlying parameter collection (for example, the two can use OFDMA, but with different spectral masks, different resource block sizes etc.).It will be further understood that the TTI being each sliced can be with Difference, but in some embodiments its by be basic TTI values multiple.

In the exemplary embodiment, RAN be sliced manager 150 will be sliced to the first RAN 152 one AP collection of distribution (or TP/RP collection) and corresponding RAT or RAT collection, and distribute different AP collection (or TP/RP collection) and corresponding to the 2nd RAN slices RAT or RAT collection.In some instances, it can be sliced to each RAN and distribute overlapping physics or virtual access point collection, but its With different use priorities.For example, 152 (S1) of slice distribution access points 604 will be serviced to MBB as its main RAN access And macro access point 602 is as rollback；It is used for it on the contrary, 152 (S2) of slice will be serviced to IoT and distribute only macro access point 602 RAN is accessed.

As described above, at least some examples, each RAN slices 152 will be effective as and most of network nodes The different virtual networks opened of physical network undistinguishable operated.In some embodiments, each RAN slices 152 The Internet resources customized according to the demand of the service operated in it can be provided.This may include providing in the network 100 Both data plane and control plane.Each slice can be equipped with multiple network work(that state machine can be used as to be operated Energy.Scheduler can be represented as the state machine in slice, to provide tune in transmission environment that is based on mandate and exempting from mandate Degree.In a slice, it may be determined that the transmission based on mandate will be used to transmit (such as supporting the slice of MBB), and another slice It can allow to exempt from authorized transmissions (such as supporting the slice of MTC or Internet of Things (Internet of Things, IoT) device).It cuts (or competition-based) and scheduled uplink transmission the two that piece may also be suitable for exempting to authorize.In some embodiments In, the demand to scheduler may be caused very different between slice the different demands of scheduler, this is for each slice Possess for the scheduling feature (or function collection) of its own that it may be advantageous.This can be by being illustrated as patrolling in each slice The single scheduler of dispatch state machine is collected to provide.It will be understood by those skilled in the art that access parameter, waveform, underlying parameter collection Specific parameter is sliced with other to be managed by the different conditions machine in UE associated with the slice and network entity.Cause This, the UE for being connected to multiple slices may be used as the platform of multiple state machines.

The UE 110 for being connected to different slices each of can be connected to slice for it and support different groups of state machine. These state machines will preferably be run simultaneously, and there may be moderator with ensure the access to physical resource in UE compete into Row processing.Different conditions machine in UE may cause UE not only executed exempt from authorized transmissions but also execute the transmission based on scheduling.In UE There may also be the functions of the operation for coordinating multiple state machines.

The enabled UE 110 of state machine is described in following patent applications and supports the example of network：Entitled " System The U.S. of and Method For Always On Connection in Wireless Communication System " is special The open No.US2015/0195788A1 of profit；Entitled " Apparatus And Method For A Wireless Device To The U.S. Patent Publication No.US2016/0227481A1 of Receive Data In An Eco State "；And it is entitled The Serial No. 15/165,985 of " System And Method of UE-Centric Radio Access Procedure " U.S. Patent application, all these applications are herein incorporated by reference.In the exemplary embodiment, it is retouched in above-mentioned document The state machine correlation function stated on UE 110 and network by slice realize, rather than based on equipment level realize. As an example, in one embodiment, RAN 125 and UE 110 is configured as being sliced 152 (S1) and 152 for each RAN (S2) different operating states for supporting UE 110, wherein each mode of operation supports different UE functions.Specifically, show at one In example, UE 110, which is configured as realizing, can be directed to each RAN slice 152 (S1) and 152 (S2) in two different conditions (i.e. the One " movable (Active) " state and the second energy saving " ECO " state) between the state machine converted.In illustrative embodiments In, compared with the active state, the wireless access function collection supported under ECO states is reduced.It is propped up under two states Hold at least a degree of connectivity to RAN 125 so that UE 104 is sliced 152 (S1) and the 2nd RAN slices relative to RAN 152 (S2) are kept to the connection always of RAN 125.In some embodiments, UE 110 is configured under " activity " state Authorized transmissions and both transmission based on mandate are exempted from reception, but " exempting to authorize " transmission is only received under " ECO " state, and phase For ECO states, 110 uplink link status information of UE is received more frequently and on the different channels in ambulatory situations.

Therefore, support the UE 110 of each slice state machine that can be sliced the phase of both 152 (S1) and 152 (S2) with RAN Same state (such as two slices are active state or two slices are ECO states) or (such as one cut with different conditions Piece is active state and another slice is ECO states) it is carried out at the same time operation.In the exemplary embodiment, different RAN is cut Multiple states or the state of different number can be supported for piece 152.In the exemplary embodiment, in AP/UE functional parameters Collect the fixed information which state whether supported and support in a slice of 174 middle finger fixed limits (referring to Fig. 2).

In another embodiment, UE is connected to different RAN slices.First slice can support the clothes of such as eMBB Business, and the second slice supports the service for being not necessarily required to the connection reliability of same levels, such as MTC services.However first In slice, UE may be at one of active state or idle state, and in MTC slices, UE may be at active state, sky Any state in not busy state or ECO states.Exempt to authorize or based on competition in general, MTC device can execute some from ECO states Transmission, and and if only if there are when scheduled transmission window or the downlink transmission dispatched in advance just enter active state.Such as Fruit physics UE in eMBB is sliced is in active state, then physics UE can be in the feelings that need not be converted from idle state Allow MTC to be sliced under condition and executes transmission.This can allow process in UE or MTC slices using the moving type of another part of UE State.

It should be understood that although described above have been made with reference to have slice for each service, provided by network limited The slice of quantity may be practical, wherein each slice serves a variety of different services with enough similar qualities.At one In example, a variety of different content delivery networks can coexist in single RAN slices.

In the core network, can give each network support service provide the slice of its own, and by this be sliced with it is corresponding RAN slices it is associated so that end-to-end slice can be executed under the control of slice manager 130 and managed.In this respect, scheme 7 schematically show a kind of service customization virtual network (Service Customized Virtual Network, SCVN) Realization method, wherein slice 1 to slice 5 is implemented as extending through the virtual network of core net 130 and RAN 125 respectively. In illustrative embodiments, slice manager 130 and each in core slice manager 140 and RAN slice managers 150 Exchange information by create end to end, service centered on slice 1 to slice 5.Each slice packet in slice 1 to slice 5 Include the RAN slices 152 of the resource set and qualified association for core net of the core net slice of qualified association is used for RAN 125 Resource set.

In the embodiment that occurs of both core slice and RAN slices, resource allocation manager 115 (is being autotomyed Under the instruction of piece manager 130) it may insure the business received in the slice from RAN 125 being supplied to and core net The virtual decoders that corresponding slice in 130 is connected.Which ensure that when from 110 devices of UE receive data when, keep every From this is because decoding can be happened in network slice appropriate rather than at public wireless access point.

Fig. 8 can be used to realize the methods disclosed herein and system and the letter of the example of exemplary method described below Change the schematic diagram of processing system 400.Can using the modification of exemplary processing system 400 or processing system 400 come realize UE 110, AP 105, resource allocation manager, scheduler 120, slice manager 130, core net slice manager 140 and/or RAN slices Manager.Processing system 400 can be such as server or mobile device or any suitable processing system.It can use Other exemplary processing systems described in present disclosure are adapted for carrying out, those of may include and be discussed below component not Same component.Although Fig. 8 shows the single instance of each component, each component can have multiple in processing system 400 Example.

Processing system 400 may include one or more processing units 405, such as processor, microprocessor, special collection At circuit (application-specific integrated circuit, ASIC), field programmable gate array (field- Programmable gate array, FPGA), dedicated logic circuit or combination thereof.Processing system 400 can also include One or more optional input/output (input/output, I/O) interfaces 410, may be implemented with it is one or more The interface of suitable input unit 435 and/or output device 440.Processing system 400 may include that one or more networks connect Mouthfuls 415, for network (such as Intranet, internet, P2P networks, WAN and/or LAN) or other nodes carry out it is wired or Wireless communication.Network interface 415 may include one or more interfaces to cable network and wireless network.Cable network can To use wire link (such as Ethernet cable), and wireless network (when it is used) can be utilized through antenna (such as Antenna 445) transmission wireless connection.Network interface 415 can for example via one or more transmitters or transmitting antenna with And one or more receivers or reception antenna provide wireless communication.Individual antenna 445 is shown in this example, it can For use as both transmitter and receiver.However, may exist individual antenna for transmitting and receiving in other examples. In the embodiment that processing system is network controller (such as SDN controllers), wireless interface, and antenna can be not present 445 can be not present in all embodiments.Processing system 400 can also include one or more storage units 420, May include Mass Storage Unit, such as solid state drive, hard disk drive, disc driver and/or CD drive.

Processing system 400 may include one or more memories 425, may include volatile memory or it is non-easily The property lost memory (such as flash memory, random access memory (random access memory, RAM) and/or read-only memory (read-only memory,ROM)).Non-transient memory 425 (and storage device 420) can be stored for being filled by processing 405 execution are set for example to execute the instruction of the method those of as described in present disclosure.Memory 425 may include such as It is instructed for realizing the other software of operating system and other application/function.It in some instances, can be by external memory (such as the peripheral driver of wired or wireless communication is carried out with processing system 400) provides or can be by transient state or non-transient meter Calculation machine readable medium provides one or more data sets and/or module.The example of non-transitory computer-readable medium includes RAM, ROM, erasable programmable ROM (erasable programmable ROM, EPROM), electrically erasable ROM (electrically erasable programmable ROM, EEPROM), flash memory, CD-ROM or other portable storages Device.

There may be buses 430, the communication between component to provide processing system 400.Bus 430 can be any conjunction Suitable bus architecture, including such as memory bus, peripheral bus or video bus.Optionally, (such as the key of input unit 435 Disk, mouse, microphone, touch screen and/or keypad) and output device 440 (such as display, loud speaker and/or printer) It is illustrated as in 400 outside of processing system and is connected to optional I/O interfaces 410.In other examples, input unit 435 and/ Or one or more components that can be included as processing system 400 in output device 440.Processing system 400 is net The embodiment of network controller can lack physics I/O interfaces 410, can be alternatively by the connection to network interface 415 To execute so-called (headless) server without a head of all interactions.

In the exemplary embodiment, be configured as realize RAN slice manager 150 processing system 400 can by with It is set to the information for the resource allocation that specified each RAN slices 152 are safeguarded in memory 425 or storage device 420 or combinations thereof.

Fig. 9 is shown in which that the RAN of slice is sliced the framework 900 interacted with multiple cores net.RAN is sliced manager 902 establish business routing, and can be used to based at least one CN marks be sliced and in some cases basis with The associated service ID of service that the slice is carried, by business from the guiding of CN slices to suitable TP.CN1 904 is cut Piece is to create 4 slices：It is sliced 1-1 906, slice 1-2 908, slice 1-3 910 and slice 1-4 912.CN1's 904 is every A slice bearer service, and be sliced 1-1 906 and be illustrated as carrying and 2 916 associated business of service 1 914 and service. CN2 918 has 3 slices：CN2-1 920, CN2-2 922 and CN2-3 924.Each slice bearer service, and it is sliced 2- 2 922 are illustrated as business of the carrying for servicing 1 926 and slice 2 928.It should be appreciated that service 1 914 and service 1 926 are not It must be identical service.If each carries identical service ID, can based on slice or even they from CN distinguishes them.In figure for convenience of description, RSM 902 is shown as discrete component.To those skilled in the art It is evident that described function can be incorporated into one group of routing that other elements are for example provided route instruction by SDN controllers In device.

The radio access node of base station etc. does not execute the slice to wireless interface usually.At most, using to being based on The static division of the resource of time or frequency creates pseudo channel.As described above, can also be by using not to the slice of RAN With waveform, underlying parameter collection and configured transmission complete.In the ran, multiple AP can provide overlapping overlay area.Some AP can be associated with all slices, other AP can be associated with single slice, and also has other AP can be with slice Subset is associated.Fig. 9 shows 3 AP in RAN：AP1 930, AP2 932 and AP3 934.As will be appreciated, inhomogeneity The AP of type can be used for different purposes.AP1 930 supports 4 different RAN slices：RAN slices 1 936, RAN slices 2 938, RAN is sliced 3 940 and RAN slices 4 942.AP2 932 supports two in four RAN slices：RAN slices 1 936 and RAN slices 4 942.AP 3 934 supports RAN to be sliced 1 936 and RAN slices 3 940.

When receiving the business from above-mentioned two CN in RAN, RAN be sliced manager 902 be based on CN, CN be sliced and Business is guided to corresponding RAN and is sliced by service.As shown, the service 1 914 in slice 1-1 906 is directed to RAN and cuts Piece 1 936.Therefore, the business from the service can be sent to all three AP1 930, AP2 932 and AP3 934.Come Business from service 2 916 is also the business from slice 1-1 906, is sent by RAN slices 3 940, therefore RAN is cut Piece manager 902 guides the business to AP1 930 and AP 3 934.It will be appreciated by those skilled in the art that such as institute above It states, if different services is in different CN slices, these different services can carry identical service ID.This may Different service providers are caused not know the service ID values used in other slices.Because being sliced ID and even in some feelings Core net ID can be associated with business under condition, so RAN slice managers may insure the clothes carried in slice 2-2 922 Be engaged in 1 926 can be routed to RAN slice 3 940.As the mode for providing vision differentiation help, the industry from CN1 904 Business is shown to pass through the path indicated by solid line, and the business from CN2 918 is shown to pass through the path indicated by dotted line.

Business from slice 1-2 908 is by 2 938 carrying of RAN slices；Business from slice 1-3 910 is cut by RAN Piece 2 938 carries；Business from slice 1-4 912 is by 4 194 carrying of RAN slices.From slice 2-1 920 business by 2 938 carrying of RAN slices；The business of service 926 and both services 928 in slice 2-2 922 is sliced 3 940 by RAN Carrying, and the business from slice 2-3 924 is carried in RAN slices 2 938.

Figure 10 is the flow chart for showing to route the method 1000 of downlink traffic at RSM.Those skilled in the art will It recognizes, which can be held by the router with RAN under the instruction of controller (such as software defined network controller) Row.It is used for transmission to the business of UE as shown, receiving in step 1002.The business, and can be with received from core net One of CN slices and service or the two are associated.CN associated with the business received and optional is identified in step 1004 CN slice any of.In step 1006, service ID associated with business can be optionally identified.As will be appreciated , in the network of Fig. 9, the service ID of the business from slice 1-1 906 must be identified, so that it can be by difference road By, and the service ID of the business from slice 2-2 922 is required not so much, because the business from the two slices is by road By being sliced to same RAN.In step 1008, select related to CN, CN slice identified and service ID (depending on the circumstances) The RAN of connection is sliced.Then it is sliced in step 1010 according to the RAN identified and is routed to the data being used for transmission to UE properly TP (it can be AP).RAN is sliced ID can be associated with business, to help TP to select configured transmission.In other implementations It, can be by TP come it is determined which RAN by its support is sliced come transmission services in mode.As those skilled in the art will It is well understood that mobile network is usually designed to the mobility for allowing connected UE.It therefore, will after selection RAN slices Data be routed to TP appropriate may include based on by track UE carried relative to the mobile management function to ps domain of the position of network topology The information of confession selects TP.In another embodiment, TP can be by selected one group of variation for tracking the positions UE Physics AP composition logic entity.In such an embodiment, TP can with UE unique associations, and to TP forward data It can be selection TP associated with UE and determine the function of AP collection currently associated with the TP.It then can be (using including Any amount of technology of multicast transmission) send data to composition AP in selected TP.

Figure 11 is the flow chart for showing the method 1100 for handling downlink traffic at AP (optionally TP). Business for being transmitted to UE is received in 1102 at AP.Optionally, it is supported by the business received in 1104 and by AP RAN slices are associated.This can be first carried out in advance in the ran, need not be reformed in the case.Can according to it is any amount of not Same identifier, including core net ID, core net are sliced ID, service ID or such as the tunnel ID or gateway that will discuss in fig. 12 Location is associated with to realize with what RAN was sliced.In a step 1106, AP can be sliced selection RAN configured transmissions according to RAN.If AP It only supports single slice, then need not execute the step, if parameter is provided to AP, need not also execute the step. In step 1108, using parameter associated with the RAN slices associated by data to UE transmission datas.Such as reference is discussed above will Understand, these parameters may include to f/t resources, waveform selection, underlying parameter collection parameter and other such transmission characteristics It is specified.

Figure 12 shows framework associated with network shown in Fig. 9 1200.For convenience of description, it illustrates only single CN, and illustrate only single AP.CN1 904 is shown connected to AP1 930.RAN is sliced, to provide as previously in Fig. 9 1 to the RAN slice 4 of RAN slices of middle discussion.It should be understood that in CN slices 1-1 906, there are gateway functions 1202.The gateway 1202 be the tie point being sliced between 1-1 906 and RAN.This means that from slice 1-1 906 all business (including with clothes Be engaged in 1 914 and both 2 916 associated business of service) RAN will be sent to by GW 1202.Similarly, pass through GW 1204 send from the business for being sliced 1-2 908, send the business from slice 1-3 910 by GW 1206, and pass through GW 1208 send from the business for being sliced 1-4 912.In term associated with current LTE network, GPRS Tunnel Protocol is utilized The tunnel (GPRS Tunneling Protocol, GTP) (in this case, because it is user-plane traffic, therefore is The tunnels GTP-U) business from gateway is sent to AP1 930.The tunnels GTP-U have identifier associated there. The tunnels GTP-U or its analogies in the following several generations network can be designed as routing to business into the AP for supporting RAN slices, CN is sliced and service is directed to RAN slices.It can be by the controller of such as SDN controllers 1210 to this set in tunnel To execute, and send the commands to realize by the routing function into RAN.Similarly, SDN controllers 1210 can be to AP1 930 provide instruction, to allow it according at least to tunnel ID associated with the tunnel of business is received on it and receive from it industry The suitable RAN slices of service selection for reception are carried out in the address of the gateway of business.Difference is routed in GW or tunnel with support to cut In the case of the CN slices of the service of piece are associated, it can indicate that AP is sliced and services ID based on CN and is associated with business (as shown in step 1104 in Figure 11).

In the uplink, it will be appreciated that, UE (such as UE 110) can have multiple and different virtual machines, wherein often A virtual machine is used to be sliced associated service from different RAN.This allows UE vAPs different from what is be each sliced associated, and And also allow to switch based on each slice.AP (such as AP1 930) will receive business associated with RAN slices. The business will also carry the instruction being sliced to CN associated there or CN, and can also include servicing CN associated with it Instruction.The gateway and business that tunnel that AP can be transferred to use the information to select business, business are transferred to are wanted Any one of CN or CN slice being transferred to.According to the destination information, AP can be to associated CN slice transmissions The data received.It should be understood that there are in the case of one-to-one mapping between RAN slices and CN slices, AP can be based on connecing Receipts business by RAN slice by the business guide to CN be sliced.The industry being sliced from multiple and different CN is supported in RAN slices In the case of business, it can be determined using other information such as CN slice ID or unique service ID.

It would be recognized by those skilled in the art that in embodiments of the present invention, there are method 1300 as shown in fig. 13 that. This method is related to creating the multiple RAN slices that can be applied to carry out wireless communication in the ran.Each RAN slices can be by Distribute unique distribution of RAN resources.Unique distribution provides being isolated for the transmission in being sliced with other RAN.This resource allocation can To include one group of unique configured transmission.This method can execute at such as controller of SDN controllers 1202.In step In 1302, AP is sent an instruction to create multiple slices in the wireless edge of RAN.It is received about will be by RAN in 1304 It is sliced the information of the core net and possible core net slice of service.The information may include by the gateway of therefrom reception business Mark, and can also include the mark of the service carried in the core network.The information can also include about in core net The information of the property of business.Optionally, in step 1306 use this information in determining transmission requirement (such as wireless edge transmission It is required that).In 1308, each core net or core net slice are associated at least one slice of the wireless edge of RAN.Ying Li Solution, if core net or core net slice in carry multiple and different services, there may be with core net or core Heart net is sliced the more than one slice of associated RAN wireless edges.In 1310, based on core net or core net slice with The associated route instruction of RAN slices is transferred to the node in wireless access network.The information can be transferred to as wireless Edge is sliced the AP of the interface between the non-sliced section of RAN.Routing iinformation can also be transferred to the routing work(in RAN Energy.These instructions can also be sent to the gateway function of core net (or core net slice) and the edge of RAN.Route instruction Can include the information that can be used for establishing logical tunnel between gateway and AP.This can enable networks to be operated, with The business being sliced from core net or core net is set to be directed to associated with the wireless edge slice of core network service is distributed to AP.

In alternate embodiments, receive with the business demand of the variation of core net (or slice) or wireless edge slice or It is required that associated information.This information received in optional step 1312 can indicate that there are capacity in wireless edge is sliced Excess demand superfluous or for capacity.The information can be used for the new resource allocation for determining wireless edge slice, can be with It is transferred to respective nodes.In some embodiments, which can only be transferred to the subset of AP or AP.In other implementations In mode, modification can create new wireless edge slice or remove existing wireless edge slice, in this case may be used Other nodes in RAN are sent to so that message (may be message) different from the modification message of AP is sent to will be changed, so that Logical connection can be created or remove by obtaining.

Figure 14 A are the figures for the embodiment for showing the wireless access system based on super cell.Show super cell pipe Manage device 1440 and multiple TRP 1400,1402 ..., 1434.Super cell manager 1440 is connected by unshowned backhaul network It is connected to TRP.Super cell manager 1440 is responsible for TRP being configured in super cell.This can be on basis either statically or dynamically Upper completion.More generally, the overlay area with multiple TRP is given, one or more super cells, Mei Gechao can be configured Grade cell includes one or more TRP.The configuration of the quantity and TRP to super cell of TRP is all specific for realization method 's.The coverage area of super cell can be equal to the overlay area provided by the combination of the TRP in super cell.As an alternative, Include the area smaller than all overlay areas that the combination of the TRP in the super cell provides by the overlay area that super cell limits Domain.It should also be understood that in some environments, the member in super cell can be dynamic so that the overlay area of super cell Size can change with the variation of the member in super cell.In some embodiments, TRP provides wireless frequency (radion frequency, RF) function, be formed simultaneously the ponds BBU one or more Base Band Unit (base band unit, BBU) baseband functions are provided.The ponds BBU can be centralization or distributed.In some embodiments, BBU functions can be by void Quasi-ization network function provides.For example, its can use it is associated virtual to the eNB of the total distance minimum to all related TRP Change computing resource to realize.For the exemplary purpose, TRP is had references to.However, any embodiment described herein is usually suitable For access point.

The handoff manager 1450 according to one or more embodiments described herein is also shown in Figure 14 A, It is responsible for some network side functions to realize the switching between super cell.In some embodiments, handoff manager 1450 Include the respective resources for each super cell.For example, being concentrated for multiple super cells in handoff manager 1450 In the case of, may include for each super cell, represent super cell participate in switching logical resource.As an alternative, switch Manager 1450 can be assigned individual physical resource in each super cell.This for example there may be with it is each super small The associated individual handoff manager in area 1450.In some embodiments, the quilt in the access point of each super cell Assign into represent super cell management switching a specific access point in there are handoff managers 1450.In such embodiment party In formula, the more than one AP in super cell can have the function of handoff manager, and be depended in each super cell One of AP with this function provides handoff manager 1450.This can by any amount of different realization method come It completes, including the virtualization of underlying resource is used to indicate.In some embodiments, handoff manager is implemented as such as moving Function in the network element of property management entity (MME), can also be referred to as mobile management function to ps domain (MMF).This field skill Art personnel are it will be recognized that wireless access network function may rely on the data center of one group of connection, to allow from such as eNB's Node offloading functions.In this environment, TRP can be virtual environment and physical remote Radio heads (remot radio Head, RRH) in provide function combination.

In described embodiment, the method switched between super cell is provided.From the perspective of UE, surpass Grade cell looks like normal cells.The member of TRP in super cell changes can be saturating with the UE connected to super cell Bright mode executes.More generally, method described herein generally can be applied to the switching between cell.One in cell A bit or can be all the super cell for including multiple access points.Some or all of cell can include respectively single access Point.

As described above, wireless access network slice is the one group of Internet resources that can be assigned to allow to provide one group of service And/or network function.The group service can be the service for a UE, a kind of service for multiple UE, be directed to multiple UE A plurality of types of services or a plurality of types of services for a UE.The group service can be exclusively used in operator or also may be used To be shared between multiple operators.However, as an alternative, Internet resources can be distributed directly to one or more services.Phase The service of same type can be provided by one or more slice.When needs carry out between multiple operators or service provider When isolation, it may be necessary to multiple slices.

Throughout the specification, at use " service/slice ", it is intended to cover specific to service embodiment and spy Due to both embodiments of slice.Disclosed method and system by service it is specific in a manner of and/or the specific mode of slice Operation for super cell, the configuration of super cell and super cell is provided.

Multiple (overlapping) super cells can coexist in network, to meet the requirement of various types of service/slices. In general, different UE can use different services in different super cells.In some cases, a UE can also make With the multiple service/slices supported by different super cells.In some embodiments, UE can be in downlink and upper Using the service/slice supported by different super cells in line link, this is because for downlink and uplink, Disturbed condition, link budget and business load may be very different.This coexist of multiple super cells can reside in In single carrier wave or in multiple carrier waves.

In some embodiments, the access of different service/slices can be provided by same super cell.This is taking Business/slice can only support the super cell of limited quantity type for TRP set configurations with similar requirement or in network In the case of will be reasonable.

In some embodiments, for different UE, service/slice of same type can be by different super cells (may have overlapping coverage area) provides.This may be that super cell centered on UE is required, super centered on UE Grade cell not only services specific but also is UE specific.

In general, different TRP collection can be associated from different super cells.However, different super cells can also It is supported by same TRP collection.For example, TRP collection can be directed to uses high frequency for the super cell of the small coverage area of eMBB services Rate, and at the same time using low frequency for the super cell of the relatively large coverage for URLLC services.

The exemplary configuration for depicting the TRP in Figure 14 A in fig. 14b, for provide first service (such as eMBB clothes Business).Here, the TRP for being labeled as " A " is included in the first eMBB super cells, and is included in labeled as the TRP of " B " In 2nd eMBB super cells.There are transparent boundaries between the coverage area of adjacent super cell 1436,1438.It also shows UE 1435 in the overlay area of two super cells 1436,1438.Shown system can support seamless UE to move. While receiving service from super cell 136, UE 135 can be led to one or more TRP of super cell 136 Letter.In later time, UE 135 for example due to movement can change into from super cell 138 receive service and can with it is super One or more TRP of grade cell 138 are communicated.To usually it be related to from super cell 136 to the change of super cell 138 Handover operation.

The exemplary configuration that the TRP in Figure 14 A is depicted in Figure 14 C, for providing second service (such as V2X (Vehicle-to-everything) it services).Here, the TRP for being labeled as " C " is included in super cell 1442.Figure 14 B Can simultaneously it occur in single combination examples with the configuration in Figure 14 C, in this case, specific TRP 100,106,116 It is included in 1442 the two of eMBB super cells 136 and V2X super cells, and specific TRP 1420,1426,1430 is wrapped It includes in 1442 the two of eMBB super cells 1438 and vehicle external connection (V2X) super cell.

In super cell, the TRP for serving UE can change as UE is mobile.UE can be without switching the case where Under moved freely in super cell.The TRP for serving UE can be by network function according to the uplink such as sent based on UE The information of the uplink measurement results of road reference signal (such as detectable signal, beacon or lead code) changes.

Different UE in super cell can send uplink using different uplink reference signals or different resource Road reference signal so that these UE can be distinguished by network.It avoids interfering if there is enough distances, then it can also be super Same reference signal is reused in grade cell.

When UE is moved to target super cell from the overlay area of service super cell, it may be necessary to switch.It provides For realizing the system and method switched between super cell.

For movable UE, message is exchanged between the UE and network, it is new wireless to be established in target super cell Resources control (radio resource control, RRC) connects.It can be transmitted on associated with UE to target super cell Context information.If there is any data transmission associated with ongoing session, then target can be redirected to Super cell.Contextual information is information the case where characterizing UE.

It can be by target super cell for the UE uplink reference signals used after the handover and uplink resource It is indicated by signaling.

Different types of super cell can be used for supporting different service/slices.Such as：

A. can be used for supporting to want using the super cell with small coverage area of lower-wattage node in high frequency band The eMBB of high data rate is asked to service；

B. can be used for supporting mMTC using the super cell of both high power node and low power nodes in low-frequency band Service, mMTC services may need largely to connect transmits small grouping for low-power equipment；

C. can be used for supporting to require height with the super cell quickly returned using high power node in low-frequency band The URLLC of reliability and low latency is serviced；And

D. respectively can be used for using the super cell with large coverage of a large amount of high power nodes in low-frequency band Support requires the V2X of high mobility to service.

Therefore, a plurality of types of super cells can coexist in network.It, can be by more when UE needs multiple services The super cell service of type.UE can know the type of super cell by broadcast message.As an alternative, each cell ID Can be associated with specific super cell type so that once UE know super cell cell ID its be assured that it is super Cell type.Super cell type can be limited by servicing so that each super cell is used for special services.By showing above Example, super cell type will include eMBB, uMTC, URLLC and V2X, but other types are also possible certainly.

According to the embodiment of the present invention, different types of super cell can coexist in network, and can have Overlapping overlay area.Therefore, it is moved along path and the UE for being connected to more than one super cell can be in different time Switching is undergone between super cell.For illustrative purposes and in an example of offer, UE may be coupled to for connecing Enter the first super cell of eMBB services, and is also connected to the second super cell serviced for MTC.First super cell and The edge of second super cell may not always be in alignment with each other (such as the overlay area of super cell may differ).When UE is moved When dynamic, the overlay area of the first super cell may be had left due to it and undergo and be switched to third super cell. The switching provided between the first super cell and third super cell of eMBB services can be need not be super small from second Area executes in the case of switching over.So, it will be understood that provide and executed for being once directed to a type of super cell The method of switching.

Figure 14 D, which are shown, the angle of the slave UE provided according to embodiment of the present invention to be executed handover operation (it can also be by Referred to as handover (handing off)) method 1460.Method 1460 starts from frame 1462, wherein UE with it is at least one First service cell is communicated to send or receive each in multiple stream of packets.For each service, it to be used for the service Uplink communication include one in the multiple stream of packets, or the downlink communication for the service includes described One in multiple stream of packets.For some services, service may there are two streams, one to be used for uplink communication and one For downlink communication.This method continues in frame 1464, wherein transmitting at least one measurement report or transmission reference Signal.In frame 1466, in response to instruction, complete at least one of multiple stream of packets from least one serving cell In one arrive target serving district switching.Note that this refers to about the sides the UE function of completing switching.In frame 1468, After switching, UE continue to be communicated with one of at least one first service cell with send or receive multiple stream of packets it One.

Figure 14 E show from the angle of the network for multiple cells and each cell including at least one access point into The method 1470 of row switching.Method 1470 starts from frame 1472, wherein utilizing the first clothes of at least one of the multiple cell Business cell is communicated with UE to send or receive each in multiple stream of packets.For each clothes at least one service Business, the uplink communication for the service includes one in the multiple stream of packets, or for the downlink chain of the service Road communication includes one in the multiple stream of packets., may be there are two stream of packets for some services, one for uplink Road communicates and one is used for downlink communication.In frame 1474, network receives at least one measurement report or reference signal. It in frame 1476, transmits and instructs to UE, to complete at least one of multiple stream of packets from least one serving cell One of to the target serving district in the multiple cell switching.In frame 1478, after the handover, network continues with One of at least one first service cell is communicated with UE, to send or receive one in multiple stream of packets.

The example of these methods is described below with reference to Figure 15 to Figure 19.It should be understood that the method in Figure 15 to Figure 19 is very Detailed example, and be not necessarily required to execute these specific steps.Some steps can be changed or be omitted.Some steps exist It is identical in multiple figures, and will not be repeated again the description to these steps.Each attached drawing includes the function and use for UE The function of network in one or more cells (including each one or more access points).For each attached drawing, make The corresponding method executed by UE is provided for embodiments of the present invention comprising some or all of the step of UE is executed, And provide corresponding device as embodiments of the present invention comprising be configured as realizing one in the step of UE is executed A little or whole UE.For each attached drawing, as embodiments of the present invention provide by networking component or functional entity (such as By one or more networking components or these groups that may include access point, super cell manager or handoff management device The specific combination of part) corresponding method that executes, may include some or all of the step of network executes, and conduct Embodiments of the present invention provide corresponding device comprising are configured as realizing some or all of the step of UE is executed One or more networking components.

For obtaining the movable UE of service from multiple super cells for different services, which can execute from multiple sources Corresponding switching of the super cell to one or more target super cells.Switching can be initiated by switching request message, wherein UE can indicate desired target super cell to network.For example, switching request message can include instruction target super cell Cell ID information element.In some embodiments, which can be sent to super with target associated by UE The source super cell or different types of another super cell of grade cell same type.

When receiving the switching request from UE, source super cell can be determined as that (UE is currently closed by network first Connection) with the super cell of target super cell same type, the context of UE is then transferred to target from source super cell Super cell.

During switching and after switching, UE can still be kept and the different types of super cell before of target super cell Connection.

In some embodiments, UE can execute switching in a plurality of types of super cells simultaneously.In such case Under, target super cell list can be indicated in switching request message.Network source super cell list can be determined as with The super cell of target super cell same type in list.

It is switched over from one of multiple serving cells

Figure 15 show by embodiments of the present invention provide for the switching of one of super cell associated by the UE To the example of the process of target super cell.Being switched over from a service super cell (source super cell) does not influence UE and its He services the packet data transmission between super cell.For example, UE can be switched to another eMBB from an eMBB super cell Super cell, while still maintaining the existing connection of itself and mMTC super cells and URLLC super cells.

Figure 15 show UE 1504, will as switching source super cell 1506 service super cell and want As the transmission between the super cell for the target super cell 1508 of switching.Also show other service super cells 1502.These are other super cells associated with UE 1504 but be switched not as a part for handoff procedure 1502.Various service super cells 1502,1506 can be for example respectively associated from different service/slices.It should be understood that Figure 15 In method be very detailed example and be not necessarily required to execute these specific steps.Some of steps can be changed Or it omits.

It in step 1, can be from service super cell (including source super cell 1506 and other super cells 1502) Some (one, partly or entirely) sent to UE 1504 and measure control message.In some embodiments, it is serviced from one Measurement of the measurement control message control that super cell is sent to service super cell 1502, some or all of 1506.From Begin to end, UE 1504 exchanges grouped data with service super cell 1502,1506.It can be according to UE 1504 about one or more The contextual information of a super cell configures measurement process.For example, context may include when connection is established or upper one The information about roaming and access restriction provided when secondary timing advance update.

In step 2, it can be surveyed from one or more transmissions of the UE 1504 into service super cell 1502,1506 Amount report.In some embodiments, service super cell can by measurement report or in which some measurement report information turn Issue some other service super cells.Measurement report indicates the measurement result for the downlink radio channel that UE is obtained.It can be with The content to be measured for example is configured for UE by RRC signaling by network.

For the embodiment described herein and other embodiment, exist triggering measurement report it is many it is different can It can condition.Such as：

Serving cell becomes more preferable than absolute thresholding；

Neighboring community becomes more preferable than the offset relative to serving cell；And

Neighboring community becomes more preferable than absolute thresholding.

The cell reported in the measurement report provided may rely on trigger.Given service is switched, is being surveyed At least cell-of-origin or Target cell are needed in amount report.

Optionally, for any embodiment described herein, UE can transmit multiple measurement reports, each measurement report Handle a type of service.

After step 2, each whether service super cell can be needed based on the measurement report for it to be individually determined It is switched over.In other embodiments, measurement report can be sent to following network functions, can be according to net The more global image of network demand is made whether to need the determination that switches, rather than is made by the entity in particular super cell Whether the determination that switches is needed.In the illustrated example shown in fig. 2, a service super cell (source super cell 1506) is in step 3 Switching is made to UE 1504 to determine, and other service decisions of super cell 1502 need not switch over UE 1504.

In logic, the TRP of super cell can be considered to be the remote antenna collection of a cell.These may, for example, be by The transmission letter that one BBU (it can be discrete entity as described above or can be virtualisation entity in computing resource) is generated Number.It from the perspective of UE, is communicated with cell, and each TRP need not be perceived.In some embodiments In, there is the logic entity for making switching decision for super cell associated with each super cell and (is described before such as A part for handoff manager in Fig. 1).As discussed above, the entity can be exclusively used in single super cell or its It can be associated with multiple and different super cells.

In step 4, switching request message is sent from source super cell 1506 to target super cell 1508.This can be wrapped Include the information that target super cell 1508 can be allowed to prepare switching in target side.In steps of 5, if super cell 1508 can With authorization resources, then target super cell 1508 can for example according to received service quality (quality of service, QoS) information executes admission control to increase the possibility of successful switch.As it will be understood to those of skill in the art that, access Control may include being interacted with other network functions to execute admission control processing.Then, target super cell 1508 can To configure required resource according to E-RAB (radio access bearer, the radio access bearer) QoS informations received, and And reserve C-RNTI and optional random access channel (random access channel, RACH) lead code.It is small in target The AS configurations used in area independently can be appointed as increasing compared with the AS configurations (" reconfiguring ") used in cell-of-origin It measures (" establishing "), or the configuration is specified with apparent other modes to those skilled in the art.

In step 6, target super cell 1508 prepares switching and sends to source super cell 1506 to switch using L1/L2 Request confirmation (HANDOVER REQUEST ACKNOWLEDGE) message.Switching request acknowledgement message may include will be by as holding The RRC information of row switching is sent to the transparent vessel of UE 1504.The container may include any one of following or whole： The target super cell security algorithm identification symbol of new C-RNTI, selected security algorithm, and it may include special RACH Lead code and possible some other parameters, i.e. access parameter, SIB etc..If it is necessary, switching request acknowledgement message can be with Include the RNL/TNL information for forwarding tunnel.

Data forwarding can be after source super cell 1506 receives switching request acknowledgement message or when in downlink chain It is initiated when transmitting switching command in road.

In step 7, RRC connections are sent from source super cell 1506 to UE 1504 and reconfigure message, and this can be with Instruction UE 1504 should be switched to target super cell 1508 from source super cell 1506.It is super small that this can for example be related to target Area 1508 generates the RRC information for executing switching sent from source super cell 1506 to UE 1504, that is, including mobility The RRC connections of control information (mobilityControlInformation) reconfigure (RRCConnectionReconfiguration) message.Source super cell 1506 can execute the encryption of message and integrality is protected Shield.UE 1504, which is received, has parameter (that is, before new C-RNTI, target eNB security algorithm identifications symbol and optional special RACH Leading code, target eNB SIB etc.) RRC connections reconfigure message and by source super cell 1506 indicate to execute switching. After step 7, UE 1504 is detached from source super cell 1506 and is synchronized to target super cell 1508.At this point, UE 1504 It is not detached with other service super cells 1502.

Additional step can be executed with loss of data during helping to avoid switching.For example, in step 8, source super cell 1506 can send SN states to target super cell 1508 shifts (STATUS TRANSFER) message, to convey --- grouping Data convergence protocol (PDCP, packet data convergence protocol) state keeps being applicable in and (being used for RLC AM) --- the downlink PDCP SN transmitters states and uplink PDCP SN receiver states of E-RAB.Uplink PDCP SN receiver states include at least first loss uplink service data cell (service data unit, SDU) PDCP SN, and may include UE 1504 need retransmitted in Target cell without sequence uplink SDU (if there is Such SDU) reception state bitmap.Downlink PDCP SN transmitters states can indicate target super cell 1508 Distribute to next PDCP SN of the not yet new SDU with PDCP SN.If the unused PDCP states of the E-RAB of UE 1504 Holding is handled, then source super cell 1506, which can be omitted, sends the message.

In step 9, after receiving the RRC connections including mobility control information and reconfiguring message, UE 1504 Start to be synchronized to target super cell 1508.This can be related to UE 1504 and indicate special RACH in mobility control information In the case of lead code after non-competing process, or in the case where not indicating dedicated preamble in mistake competition-based After journey, Target cell 1508 is accessed via RACH.UE 1504 can obtain 1508 specific key of target super cell and match Set the selected security algorithm to be used in Target cell 1508.

In step 10, target super cell 1508 to UE 1504 by transmitting uplink distribution and timing advance letter It ceases to respond.

In a step 11, when UE 1504 has been successfully accessed Target cell, UE 1504 is to target super cell 1508 It sends RRC connections and reconfigures completion (RRCConnectionReconfigurationComplete) message (C-RNTI).It should Message can be used for confirming switching, and can be reported with uplink buffer state and be sent to target super cell together 1508 to indicate that the handoff procedure of UE 1504 is completed.It will be understood that may not to the transmission of uplink buffer state report Always occur, but transmission uplink buffer status reporting may be advantageous in the conceived case in some embodiments 's.Target super cell 1508 can be verified reconfigures the C-RNTI for completing to be sent in message in RRC connections.Target is super small Area 1508 can start now to 1504 transmission datas of UE.

It is switched over for some services in cell

Figure 16 shows that some services for that will be used for UE 1602 that embodiments of the present invention provide are super small from source Area 1604 is switched to the example of the process 1600 of target super cell 1606.In this example, UE is obtaining source super cell Multiple services in 1604, and by these service in some but be not all of and switch to target super cell 1606.

By this embodiment, the switching for service (or services set) B obtained by super cell will not shadow Ring the packet data transmission of another service (or services set) A obtained by same super cell.For example, participating in super cell URLLC services and the UE of both mMTC services its mMTC service can be switched to new super cell, while still to old super Cell transmission business associated with URLLC services.

In step 3, source super cell 1604 determines service B being switched to target super cell 1606 and does not switch clothes Be engaged in A.It is appreciated that this may relate to send instruction to source super cell 1604 to initiate the network function participation of switching.

In step 4, source super cell 1604 sends switching request message to target super cell 1606.The switching request Message request pair business associated with service B switches over.

In step 7, source super cell 1604 sends message to indicate that it is super to target that UE 1602 is executed to UE 1602 Cell 1606 switches and the business of service B associated (but not switching for servicing A).

After receiving message in step 7, UE 1602 is synchronized to target in the case where not detached from cell-of-origin 1604 Cell 1606.Grouped data for servicing A still can be transmitted in source super cell 1604.

After performing the hand-over, it is sent by target super cell 1606 for servicing the grouped data of B.

In step 12, target super cell 1606 sends message to source super cell 1604, to notify UE 1602 to change Become it and services the cell of B.This allows source super cell 1604 to discharge resource associated with service B.

It is switched to serving cell

Figure 17 shows what embodiments of the present invention provided to be switched to another clothes for servicing super cell from one The example of the process 1700 for super cell of being engaged in.In this case, there are UE 1702, are utilizing source super cell 1704 First service (or services set) B is obtained, and service super cell is being utilized to obtain second service (or services set) A, the clothes Super cell of being engaged in will be as the target super cell for being switched over for the first service collection B from source super cell 1704 1706.It is passed as shown, not influencing the grouped data for servicing (or services set) A for the switching of service (or services set) B It is defeated.For example, can be by its mMTC using the UE of the URLLC services in the mMTC services and target super cell in the super cell of source Service is switched to target super cell, to enjoy both mMTC services and URLLC services in target super cell.

In step 3, source super cell 1704 determines that UE 1702 should be switched to target super cell (for service B) 1706。

After receiving message in step 7, UE 1702 may not be needed to accomplish the additional of target super cell 1706 It is synchronous, because it has been synchronized to target super cell 1706 to use service A.However, if service B is required with service A not With synchronization, then UE 1702 may be still to execute synchronization.

After performing the hand-over, it is transmitted by target super cell 1706 for servicing A and servicing the packet count of B both According to.

In step 12, target super cell 1706 can send message with to source super cell to source super cell 1704 1704 notice UE 1702 have changed it and have serviced the cell of B, therefore can be released in the super cell of source for servicing the resource of B It puts.

Only switch in the uplink

Figure 18 show that embodiment provides for being switched to another cell from a super cell in the uplink Without the example of the process 1800 switched in the downlink.In this case, exist for first service (or service Collection) UE 1802 of uplink and downlink communication is carried out with source super cell 1804, and there are target super cells 1806, it is the target switched over to the service from source super cell 1804 only for uplink.Also show service Gateway (GW) 506.As shown in figure 18, to UE 1802 in downlink direction under the influence of the switching not of uplink connection responsibility Packet data transmission.For example, the mMTC services of its uplink can be switched to new super cell, while the company of holding by UE 1802 Old cell is connected to for other services (and being possibly used for the downlink traffic of mMTC services).

In step 2, UE 1802 sends downlink measurement report and/or uplink reference signals (such as detection letter Number) for network execution uplink measurement.

In step 3, source super cell 1804 is made based on measurement result needs to carry out uplink switching to UE 1802 And without the decision of downlink handover.

In step 4, source super cell 1804 sends uplink switching request message to target super cell 1806.It should Message can indicate that request carries out uplink switching without downlink handover.

In step 7, source super cell 1804 sends message to indicate that UE 1802 is executed to uplink to UE 1802 The switching of business and without accordingly to the switching of downlink traffic.

After receiving message in step 7, it is super that UE 1802 is synchronized to target in the case where not detached from cell-of-origin Cell 1806.

After performing the hand-over, UE 1802 sends uplink packet to target super cell 1806, and super small from source Area 1804 receives downlink packets.

It is received after RRC connections reconfigure and complete message from UE 1802, target super cell 1806 need not be to MME transmitting path switching requests.Target super cell 1806 will receive the uplink packet from UE 1802 and be forwarded To the gateway function for such as servicing GW 506.

In step 12, target super cell 1806 sends message with to source super cell 1804 to source super cell 1804 Notice UE 1802 has changed its uplink cell, therefore the money in source super cell 1804 for uplink transmission Source can be released.

Only switch in the downlink

Figure 19 show that embodiments of the present invention provide for being switched to separately from a super cell in downlink Example of one super cell without the process 1900 switched over to the business on uplink direction.In this example, exist Uplink service associated with first service (or services set) and downlink industry are transmitted with source super cell 1904 The UE 1902 of the two of being engaged in.There are target super cell 1906, be only for the first service from source super cell 1904 Or the target that the associated downlink traffic of first service collection switches over.As shown, switching in downlink not shadow Ring the packet data transmission of UE 1902 in uplink.For example, UE 1902 can be by its downlink multimedia broadcast multicast Servicing (multimedia broadcast multicast service, MBMS), service is switched to new cell, while it is still It stays in old cell for other services.

In step 2, UE 1902 sends out downlink measurement report and/or uplink reference to source super cell 1904 Signal (such as detectable signal).These reports can be used for executing uplink measurement by the entity in network.

In step 3, source super cell 1904 is made decision (or be notified and determined by what another network entity was made)： It should execute and the downlink of UE 1902 is switched over and is switched without corresponding uplink.It can be tied according to measuring Fruit makes the determination.

In step 4, source super cell 1904 sends downlink handover request message to target super cell 1906.It should Message can indicate that request carries out downlink handover in the case where switching without uplink.

In step 7, source super cell 1904 sends message to UE 1902, and instruction UE 1902 executes super small to target Area 1906 switches downlink traffic and switches without corresponding uplink.

After receiving message in step 7, UE 1902 is same not since in the case that source super cell 1904 detaches Step process is to be synchronized to target super cell 1906.Uplink synchronisation and trace regions (Tracking Area, TA) adjustment can With what is required in not all example, because UE 1902 need not send uplink packet in Target cell.

After performing the hand-over, UE 1902 is to the transmission downlink packets of target super cell 1906 and super small from source Area 1904 receives uplink packet.

In step 12, target super cell 1906 sends message to notify UE 1902 to change to source super cell 1904 Become its downlink cell, therefore the resource in source super cell 1904 for downlink transmission can be released.

Figure 15 to Figure 19 shows the process suitable for the uplink switching in MME/S-GW.In some embodiments In, MME is connected to multiple super cells and controls the switching in MME and play the super cell manager in Figure 14 A Effect.In other embodiments, these processes are extended to cover other switch instances, such as are cut without downlink Uplink switches and uplink switching between gateway (SGW) between carrying out MME in the case of changing.SGW (does not show in Figure 14 Go out) it may be coupled to multiple handoff manager/MME.In such cases, the switching of some services does not interfere with other services Packet data transmission.

In some embodiments, signal can be sent whether to let the network know that the UE for inactive UE, the UE It is being moved in another super cell.Then network can distribute new connection ID as needed for it.This connection ID is available In exempting from authorized transmissions to identify UE or generate uplink reference signals to avoid the conflict or interference in super cell.UE is obtained Two kinds of possible modes of the new connection ID about target super cell include：

A. connection ID is generated according to the cell ID of target super cell.For example, the connection ID of UE can be with UE ID and service It is associated in both cell ID of its super cell.In this case, connection ID can move into newly super small with UE Area and physical alterations；And

B. the new connection ID by network for UE distribution in target super cell is used.Refer to for example, UE can be sent to network The message for showing the cell ID of target super cell, is then received as the message that the UE distributes new connection ID from network.

In one embodiment, UE sends uplink reference signals so that network is detected.Network can be based on The measurement result of one or more access points in super cell determines whether UE should be serviced by another super cell.Such as Fruit network determines to service for UE using another super cell, then it can send the message to notify what the UE should be associated with to UE Target super cell (in some embodiments, which will include the ID of selected super cell).The message can wrap The new connection ID used in target super cell containing UE.The message also can indicate that the condition using the new connection ID.For example, It can indicate that the new connection ID should be applied in a case where：When the Reference Signal Received Power of source super cell When (reference signal received power, RSRP) is less than threshold value, when the reference signal reception of target super cell When quality (reference signal received quality, RSRQ) is higher than threshold value or when the timer expires, or Any combinations more than person.The message also can indicate that the ID for the target super cell that can use new connection ID.

When UE is serviced by multiple super cells, the message that network is sent to UE also can indicate that should not reuse these surpasses Which of grade cell.The instruction can be specific, such as the connection ID by indicating to be discharged in the message or source be super Grade cell is realized.The instruction can also be implicit, such as by sending the message to realize from source super cell to UE.

In another embodiment, UE to network sends message to ask new connection ID or to indicate that it is being moved to another Super cell.Such message can be triggered by condition that is predefined or being indicated by network.It can include that target is super The ID of cell.Network can be responded with message to indicate connection ID that UE can be used in target super cell.This is new Connection ID can be current connection ID (if not conflicting in target super cell), by UE according to ad hoc rules (such as According to the ID of target super cell) the new connection ID obtained or the new connection ID distributed in the message.

When UE is serviced by multiple super cells, the message that UE is sent to network also can indicate that in these super cells Which is source super cell.The instruction can be it is specific, such as the connection ID by indicating to be discharged in the message or should Source super cell is realized.The instruction can also be implicit, such as by transmitting information to realize to source super cell.

As described above, Fig. 8 is the schematic diagram of the processing system 400 of exemplary reduced.As discussed above, processing system 400 can be used to implement method disclosed herein and system and example described below method.It is UE, access point, super small Area's manager and handoff manager can be realized using the modification of example processing system 400 or processing system 400.Processing system System 400 can be such as server or mobile device or any suitable processing system.Can use be adapted for carrying out the disclosure Other exemplary processing systems described in content may include the component different from component those of is discussed below.Although Fig. 7 shows the single instance of each component, but may exist multiple examples of each component in processing system 400.

Processing system 400 may include one or more processing units 405, such as processor, microprocessor, special collection At circuit (ASIC), field programmable gate array (FPGA), dedicated logic circuit or combination thereof.Processing system 400 may be used also To include one or more input/output (I/O) interface 410, may be implemented to fill with one or more suitable inputs Set the interface of 435 and/or output device 440.Processing system 400 may include one or more network interfaces 415 for Wired or wireless communication is carried out with network (such as Intranet, internet, P2P networks, WAN and/or LAN) or other nodes.Net Network interface 415 may include in network and/or the wire link of inter-net communication (such as Ethernet cable) and/or wireless Link (such as one or more antennas).Network interface 415 can be for example via one or more transmitters or transmitting day Line and one or more receivers or reception antenna provide wireless communication.Individual antenna 445 is shown in this example, It may be used as both transmitter and receiver.However, may exist for transmitting and receiving individual in other examples Antenna.Processing system 400 can also include one or more storage units 420, may include Mass Storage Unit, example Such as solid state drive, hard disk drive, disc driver and/or CD drive.

Processing system 400 may include one or more memories 425, may include volatibility or non-volatile deposits Reservoir (such as flash memory, random access memory (RAM) and/or read-only memory (ROM)).Non-transient memory 425 can be deposited It stores up for being executed for example by processing unit 405 to implement the exemplary instruction as described in present disclosure.Memory 425 can With including such as being instructed for realizing the other software of operating system and other application/function.It in some instances, can be by outside Memory (such as peripheral driver of wired or wireless communication is carried out with processing system 400) provides or can be by transient state or non- Transitory computer-readable medium provides one or more data sets and/or module.The example of non-transitory computer-readable medium Including RAM, ROM, erasable programmable ROM (EPROM), electrically erasable ROM (EEPROM), flash memory, CD-ROM or its His pocket memory.

There may be buses 430, provide the communication between the component of processing system 400.Bus 430 can be any conjunction Suitable bus architecture, including such as memory bus, peripheral bus or video bus.In fig. 8, (such as the key of input unit 435 Disk, mouse, microphone, touch screen and/or keypad) and output device 440 (such as display, loud speaker and/or printer) It is illustrated as outside processing system 400.In other examples, one in input unit 435 and/or output device 440 or more Multiple components that can be included as processing system 400.

In some embodiments of the above method, RAN resources may include any or all of in following resource：It will RAN is connected to the network insertion resource of physical core net；The wireless frequency and time resource of RAN；And specified network insertion money How to eat dishes without rice or wine to configure with the radio frequency resources interface of RAN in source.Optionally, at least some RAN slices can connect with network Enter the public distribution of resource and adjacent radio frequency resources, and distributes to each at least some RAN slices A slice eats dishes without rice or wine to configure, and the wireless communication of at least some RAN slices is isolated from each other.Eating dishes without rice or wine to configure can specify The waveform of RAN slices and the underlying parameter collection that be applied to the waveform.Multiple RAN slice may include the first RAN slices and the Two RAN are sliced, and configuration of eating dishes without rice or wine specifies identical waveform but is different underlying parameter collection.In this way, underlying parameter collection It can allow have a degree of isolation between slice, because from the first associated receiver of slice due to different transmission bases Plinth parameter set thus will not be able to correctly decode the data transmitted in the second slice.It is public in such example Waveform can be OFDMA waveforms, and underlying parameter collection associated with each slice can be with one in the following Or more various combination：Subcarrier spacing, circulating prefix-length, symbol lengths, the scheduled transmission duration it is lasting when Between and the scheduled transmission duration in include symbol quantity.

In another embodiment, it can be sliced to RAN and distribute different network insertion resource and time and wireless frequency The various combination of rate resource, to provide isolation.

It would be recognized by those skilled in the art that this method allows RAN slices being sliced (or core net with corresponding core net Service in slice) it is associated, so that communication associated with service can use RAN slices and its associated core to cut Piece.

In other embodiments, at least one RAN is sliced, network insertion resource includes being used for downlink communication At least one logic sending point and at least one logic receiving point for uplink communication.TP and RP can be based on difference Physical access point set.In some embodiments, it may be deposited between the member of the physical access point in logic TP and RP Overlapping.It may be not present in other embodiments overlapping.Even if the member in physics AP is identical, difference is patrolled It collects identifier and distributes to the logic distinguishing that can also create UE with the associated TP and RP of slice.It is also possible to distribute in a slice TP or the physics AP collection of RP can be different from the physics AP collection for distributing to TP or RP in another slice.TP in any slice Or the member of RP can change in the case where not notifying UE, as long as maintaining logic TP or RP identifier.UE Identical physics AP collection in different from two being sliced is communicated, without can be appreciated that this is overlapping.

Be sliced and after defining logic TP and RP in each slice establishing, can receive go to be attached to it is more In the business of the UE of a slice, and routes it to and be sliced or service associated AP with CN, CN associated by the business.So After can utilize configured transmission associated with RAN slices that business is transmitted to UE.It can (it can be with by different logic TP There is or can not have identical physics AP) to UE transmission associated business are sliced with different.

When UE has business to be transmitted, which can be transmitted to related to the slice associated by respective service The RP of connection.Identifier based on UE, receive business by RP, service identifier associated with the transmission and destination Any of address is whole, and the business received can be routed to suitable core net or core net slice.

Figure 20 is the flow chart for showing the method 2000 for being executed at UE.It will be understood to those of skill in the art that should Method 2000 can be used by UE when being interacted with super cell switching command.In step 2002, UE is super with first Cell is communicated.The communication is for carrying business associated with first service.In some embodiments, uplink and Both downlink traffics are transmitted by the first super cell, and in other embodiments, one of both only by the One super cell is transmitted.In step 2004, UE is communicated with the second super cell to carry out transmission associated with second service. It is stressed again that its can be both uplink and downlink or its can only be one way traffic.In step 2006, UE receives switching command.The decision that the instruction, which can be networking component or function, to be made based on various different inputs as a result, institute It may include the business report from UE, the load information from infrastructure elements and will be by people in the art to state input Member is interpreted as loading and switching with cell any or all of in other related data of decision.What is received in step 2006 should At least one of uplink service associated with first service and downlink traffic are switched to by switching command instruction UE Third super cell.The case where only transmitting uplink service using the first super cell or only transmitting downlink traffic Under, instruction will be related to the business.In the case where both uplink service and downlink traffic are transmitted, uplink Any one in road business and downlink traffic or the two can be associated with the instruction.In response to receiving finger in 2006 It enables, UE executes indicated cut in step 2008 in the case where not initiating the switching of pair business associated with second service It changes.

It would be recognized by those skilled in the art that in some embodiments, the first super cell and the second super cell can To be same super cell, in this case, the communication of two kinds of services is all transmitted by same super cell, and After switching, compared to business associated with second service, from the associated business of first service in different super cells In be transmitted.In other embodiments, the first super cell and the second super cell are different, but third cell can With identical as second community.This has the effect of flow associated with two services being moved to same cell.

In other embodiments, in step 2002, the first super cell may have been used for carrying and the first clothes It is engaged in both associated uplink service and downlink traffic, but after executing step 2008, only uplink service It is transferred to third cell with one of downlink traffic.In other embodiments, first super small in step 2002 One in area carrier only uplink service and downlink traffic, and after executing step 2008, uplink and Both downlink traffics are carried in third super cell.

Single switching command can include about the information serviced more than Business Stream and possibly more than one.As showing Example, switching command can indicate to transmit the UE of uplink service and downlink traffic just in the first super cell by uplink Link traffic is switched to third cell and downlink traffic is switched to the 4th cell, while will be associated with second service Business stays in the second super cell.In another embodiment, can receive instruction with will with (it is super to be carried on first respectively In cell and the second super cell) to be switched to third small for the associated uplink service of both first service and second service Area, while downlink traffic being stayed in corresponding super cell.

It should be understood that network provides the ability of the RAN of slice, that network can be allowed to be provided in each slice is multiple and different Super cell.It is then possible to which the UE for being connected to multiple and different slices may be coupled to multiple and different super cells, (often service is every Super cell link model).Then, handoff procedure can require UE that can individually handle the connection being each sliced, and causing can Independently experience the switching between different super cells.Further decoupling uplink connection associated with service and downlink The ability of link connection also allows greater flexibility.

Although describing the present invention with reference to illustrated embodiment, this description is not intended to be interpreted to limit The meaning.After with reference to specification, the various modifications and combinations of illustrated embodiment and the other embodiment of the present invention It will be apparent to those skilled in the art.Therefore, the appended claims be intended to cover any such modification or Embodiment.

Claims

1. a kind of method in UE, including：

It is communicated at least one first service cell, to send or receive each stream of packets in multiple stream of packets, wherein For each service at least one service, the uplink communication for the service includes in the multiple stream of packets One, either the downlink communication for the service include one in the multiple stream of packets or be used for the clothes The uplink communication of business includes one in the multiple stream of packets and the downlink communication for the service includes One in the multiple stream of packets；

Transmit at least one measurement report or transmission of reference signals；

In response to instruction, complete at least one of the multiple stream of packets from least one serving cell One switching for arriving target serving district；

After the handoff, continue to be communicated with one at least one first service cell, to send or connect Receive one in the multiple stream of packets.

2. according to the method described in claim 1, wherein：

With at least one first service cell communicate including：It is communicated with first community for first service, Yi Jizhen Second service is communicated with second community；

It transmits at least one measurement report or transmission of reference signals includes：Transmission is directed in the first community and third cell extremely One of few measurement report；

The method further includes：The control message for including described instruction is received, it is described that described instruction indicates that the UE should be directed to Second service is switched to the third cell from the first community；

Wherein：

Completing the switching includes：In the case where not detached from the first community, arriving for the second service is completed The switching of the third cell；

Continuing communication includes：Continue to be communicated with the first community for the first service.

3. according to the method described in claim 1, wherein：

With at least one serving cell communicate including：Led to first community for first service and for second service Letter；

It transmits at least one measurement report or transmission of reference signals includes：Transmission is directed in the first community and second community extremely One of few measurement report；

The method further includes：The control message for including described information is received, it is described that described information indicates that the UE should be directed to Second service is switched to the second community from the first community；

Wherein：

Completing the switching includes：In the case where not detached from the first community, arriving for the second service is completed The switching of the second community；

4. according to the method described in claim 1, wherein：

With at least one serving cell communicate including：Second is communicated and is directed to first community for first service Service is communicated with second community；

It transmits at least one measurement report or transmission of reference signals includes：Transmission is directed to the first community and the second community At least one of measurement report；

The method further includes：The control message for including described information is received, it is described that described information indicates that the UE should be directed to First service is switched to the second community from the first community；

Wherein：

Completing the switching includes：Complete the switching to the second community for the first service；And

Continuing communication includes：Continue to be communicated with the second community for the second service.

5. according to the method described in claim 4, wherein, not executed in the second community together for the second service The switching is completed in the case of step.

6. according to the method described in claim 4, wherein, completing the switching includes：For the second service described Synchronization is executed in two cells.

7. according to the method described in claim 1, wherein：

With at least one serving cell communicate including：For uplink communication and downlink communication about service and the One cell is communicated；

The method further includes：The control message for including described information is received, it is described that described information indicates that the UE should be directed to The downlink communication of service is switched to the second community from the first community；

Wherein：

Completing the switching includes：Complete the switching to the second community of the downlink communication about the service；

Continuing communication includes：Continue to be communicated with the first community for the service for uplink communication.

8. according to the method described in claim 1, wherein：

It transmits at least one measurement report or transmission of reference signals includes：Transmission of reference signals；

The method further includes：The control message for including described information is received, it is described that described information indicates that the UE should be directed to The uplink communication of service is switched to the second community from the first community；

Wherein：

Completing the switching includes：Complete the switching to the second community of the uplink communication about the service；

Continuing communication includes：Continue to be communicated with the first community for the service for downlink communication.

9. method according to any one of claim 1 to 8, wherein the switching is switching in MME/SGW.

10. method according to any one of claim 1 to 8, wherein the switching is switched between MME/SGW.

11. method according to any one of claim 1 to 10, including：

When in inactive state, the UE transmits signal so that the network determines that the UE is being moved to new cell In；

The UE receives the message for the cell ID for indicating the new cell.

12. according to the method for claim 11, wherein it includes in transmission to transmit signal when in the inactive state Downlink reference signal is detected for the network.

13. according to the method for claim 11, wherein the message includes being used in the new cell for the UE New connection ID.

14. according to the method for claim 11, wherein the message instruction will apply the condition of the new connection ID.

15. according to the method for claim 11, wherein the message also indicates at least one in multiple service super cells It is a to be used again.

16. a kind of method in access net, the access net includes multiple cells, and each cell includes at least one access Point, the method includes：

It is communicated with UE using at least one of the multiple cell first service cell, to send or receive multiple groupings Each stream of packets in stream, wherein for each service at least one service, be used for the uplink communication of the service Downlink communication including one in the multiple stream of packets, or for the service includes in the multiple stream of packets One, or uplink communication for the service includes one in the multiple stream of packets and is used for the clothes The downlink communication of business includes one in the multiple stream of packets；

It receives at least one measurement report or receives reference signal；

Instruction is transmitted to the UE to complete at least one of the multiple stream of packets from least one service A switching to the target serving district in the multiple cell in cell；

After the handoff, one continued at least one first service cell is communicated with the UE, To send or receive one in the multiple stream of packets.

17. the method according to claim 11, wherein：

Using at least one serving cell and the UE communicate including：It is directed in first community in the multiple cell First service is communicated with UE, and is led to UE for second service in the second community in the multiple cell Letter；

It receives at least one measurement report or receives reference signal and include：In the first community and/or the second community, connect At least one measurement report narrowed at least one of the first community and third cell；

The method further includes：The first community makes the decision that the third cell is switched to for the first service；

Wherein, transmission, which instructs, includes：First community transmission indicates that the UE should be directed to the second service from described the One cell is switched to the control message of the third cell；

The method further includes：It completes for the second service from the first community to the switching of the third cell；

Wherein, continuing communication includes：The first community is communicated for first service continuation with the UE.

18. according to the method for claim 17, wherein receive at least one measurement report at the first community It accuses, the method further includes：At least part of the measurement is transmitted to the second community, so that the second community is done The switching for going out their own determines.

19. according to the method for claim 17, wherein also connect at the first community and at the second community Receive at least one measurement report so that the switching that each cell can make their own determines.

20. according to the method for claim 17, further including：

The second community makes the switching decision for the second service.

21. the method according to claim 11, wherein：

Using at least one first service cell and UE communicate including：It is directed in first community in the multiple cell At least first service and second service is communicated with UE；

It receives at least one measurement report or receives reference signal and include：It is received at the first community small for described first At least one measurement report of at least one of area and second community；

The method further includes：

The first community, which is made, to be switched to the second community for the second service but does not execute for first clothes The decision of the switching of business；

Wherein, transmission, which instructs, includes：First community transmission indicates that the UE should be directed to the first service from described the One cell is switched to the control message of the second community；And

The method further includes：It completes for the second service from the first community to the switching of the second community；

Wherein, continuing communication includes：For the first service, continuation is communicated with the UE.

22. according to the method for claim 21, wherein the control message executes to UE instructions and is directed to described second The message of service rather than the switching of the first service.

23. the method according to claim 11, wherein：

Using at least one serving cell and UE communicate including：First is directed in first community in the multiple cell Service is communicated with the UE, and is carried out for second service and the UE in the second community in the multiple cell Communication；

It receives at least one measurement report or receives reference signal and include：It receives and is directed to the first community and the second community At least one of at least one measurement report；

The method further includes：The first community makes the decision that the second community is switched to for the first service；

The method further includes：It completes for the first service from the first community to the switching of the second community；

Wherein, continuing communication includes：The second community is communicated for second service continuation with the UE.

24. the method according to claim 11, wherein：

Using at least one serving cell and UE communicate including：In first community in the multiple cell, for upper Line link and downlink are communicated about service with UE；

It receives at least one measurement report or receives reference signal and include：At the first community, receives and be directed to described first At least one measurement report of at least one of cell and second community；

The method further includes：The first community makes following decisions：For the first service, for the first service Downlink communication be switched to the second community, but do not execute the uplink and downlink chain for the first service The switching of road communication；

Wherein, transmission, which instructs, includes：The first community transmission indicates that the UE should be directed to downlink communication about described First service is switched to the control message of the second community from the first community；And

The method further includes：It completes small from the first community to described second about first service for downlink communication The switching in area；

Wherein, continuing communication includes：The first community for uplink communication about the first service continue with The UE is communicated.

25. the method according to claim 11, wherein：

Using at least one serving cell and UE communicate including：In the first community of the multiple cell, for uplink Link and downlink are communicated about service with UE；

It receives at least one measurement report or receives reference signal and include：Reference signal is received at the first community；

The method further includes：The first community makes following decisions：For the first service, for the first service Uplink communication be switched to second community, but do not execute the switching of the downlink communication for the first service；

Wherein, transmission, which instructs, includes：The first community transmission indicates that the UE should be directed to uplink communication about described First service is switched to the control message of the second community from the first community；And

The method further includes：It completes small from the first community to described second about first service for uplink communication The switching in area；

Wherein, continuing communication includes：The first community for downlink communication about the first service continue with The UE is communicated.

26. a kind of user equipment is configured as realizing the method according to any one of claim 1 to 15.

27. a kind of access net, is configured as realizing the method according to any one of claim 16 to 25.